diff options
Diffstat (limited to 'fs/ocfs2/file.c')
| -rw-r--r-- | fs/ocfs2/file.c | 1385 |
1 files changed, 753 insertions, 632 deletions
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 41000f223ca4..21d797ccccd0 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -1,26 +1,10 @@ -/* -*- mode: c; c-basic-offset: 8; -*- - * vim: noexpandtab sw=8 ts=8 sts=0: - * +// SPDX-License-Identifier: GPL-2.0-or-later +/* * file.c * * File open, close, extend, truncate * * Copyright (C) 2002, 2004 Oracle. All rights reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public - * License along with this program; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 021110-1307, USA. */ #include <linux/capability.h> @@ -37,6 +21,7 @@ #include <linux/falloc.h> #include <linux/quotaops.h> #include <linux/blkdev.h> +#include <linux/backing-dev.h> #include <cluster/masklog.h> @@ -100,19 +85,22 @@ static int ocfs2_file_open(struct inode *inode, struct file *file) struct ocfs2_inode_info *oi = OCFS2_I(inode); trace_ocfs2_file_open(inode, file, file->f_path.dentry, - (unsigned long long)OCFS2_I(inode)->ip_blkno, + (unsigned long long)oi->ip_blkno, file->f_path.dentry->d_name.len, file->f_path.dentry->d_name.name, mode); - if (file->f_mode & FMODE_WRITE) - dquot_initialize(inode); + if (file->f_mode & FMODE_WRITE) { + status = dquot_initialize(inode); + if (status) + goto leave; + } spin_lock(&oi->ip_lock); /* Check that the inode hasn't been wiped from disk by another * node. If it hasn't then we're safe as long as we hold the * spin lock until our increment of open count. */ - if (OCFS2_I(inode)->ip_flags & OCFS2_INODE_DELETED) { + if (oi->ip_flags & OCFS2_INODE_DELETED) { spin_unlock(&oi->ip_lock); status = -ENOENT; @@ -136,6 +124,8 @@ static int ocfs2_file_open(struct inode *inode, struct file *file) spin_unlock(&oi->ip_lock); } + file->f_mode |= FMODE_NOWAIT; + leave: return status; } @@ -175,43 +165,40 @@ static int ocfs2_sync_file(struct file *file, loff_t start, loff_t end, int datasync) { int err = 0; - journal_t *journal; struct inode *inode = file->f_mapping->host; struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); + struct ocfs2_inode_info *oi = OCFS2_I(inode); + journal_t *journal = osb->journal->j_journal; + int ret; + tid_t commit_tid; + bool needs_barrier = false; trace_ocfs2_sync_file(inode, file, file->f_path.dentry, - OCFS2_I(inode)->ip_blkno, + oi->ip_blkno, file->f_path.dentry->d_name.len, file->f_path.dentry->d_name.name, (unsigned long long)datasync); - err = filemap_write_and_wait_range(inode->i_mapping, start, end); + if (ocfs2_is_hard_readonly(osb) || ocfs2_is_soft_readonly(osb)) + return -EROFS; + + err = file_write_and_wait_range(file, start, end); if (err) return err; - /* - * Probably don't need the i_mutex at all in here, just putting it here - * to be consistent with how fsync used to be called, someone more - * familiar with the fs could possibly remove it. - */ - mutex_lock(&inode->i_mutex); - if (datasync && !(inode->i_state & I_DIRTY_DATASYNC)) { - /* - * We still have to flush drive's caches to get data to the - * platter - */ - if (osb->s_mount_opt & OCFS2_MOUNT_BARRIER) - blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL); - goto bail; + commit_tid = datasync ? oi->i_datasync_tid : oi->i_sync_tid; + if (journal->j_flags & JBD2_BARRIER && + !jbd2_trans_will_send_data_barrier(journal, commit_tid)) + needs_barrier = true; + err = jbd2_complete_transaction(journal, commit_tid); + if (needs_barrier) { + ret = blkdev_issue_flush(inode->i_sb->s_bdev); + if (!err) + err = ret; } - journal = osb->journal->j_journal; - err = jbd2_journal_force_commit(journal); - -bail: if (err) mlog_errno(err); - mutex_unlock(&inode->i_mutex); return (err < 0) ? -EIO : 0; } @@ -219,14 +206,14 @@ bail: int ocfs2_should_update_atime(struct inode *inode, struct vfsmount *vfsmnt) { - struct timespec now; + struct timespec64 now; struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); if (ocfs2_is_hard_readonly(osb) || ocfs2_is_soft_readonly(osb)) return 0; if ((inode->i_flags & S_NOATIME) || - ((inode->i_sb->s_flags & MS_NODIRATIME) && S_ISDIR(inode->i_mode))) + ((inode->i_sb->s_flags & SB_NODIRATIME) && S_ISDIR(inode->i_mode))) return 0; /* @@ -245,15 +232,19 @@ int ocfs2_should_update_atime(struct inode *inode, return 0; if (vfsmnt->mnt_flags & MNT_RELATIME) { - if ((timespec_compare(&inode->i_atime, &inode->i_mtime) <= 0) || - (timespec_compare(&inode->i_atime, &inode->i_ctime) <= 0)) + struct timespec64 ctime = inode_get_ctime(inode); + struct timespec64 atime = inode_get_atime(inode); + struct timespec64 mtime = inode_get_mtime(inode); + + if ((timespec64_compare(&atime, &mtime) <= 0) || + (timespec64_compare(&atime, &ctime) <= 0)) return 1; return 0; } - now = CURRENT_TIME; - if ((now.tv_sec - inode->i_atime.tv_sec <= osb->s_atime_quantum)) + now = current_time(inode); + if ((now.tv_sec - inode_get_atime_sec(inode) <= osb->s_atime_quantum)) return 0; else return 1; @@ -283,21 +274,22 @@ int ocfs2_update_inode_atime(struct inode *inode, /* * Don't use ocfs2_mark_inode_dirty() here as we don't always - * have i_mutex to guard against concurrent changes to other + * have i_rwsem to guard against concurrent changes to other * inode fields. */ - inode->i_atime = CURRENT_TIME; - di->i_atime = cpu_to_le64(inode->i_atime.tv_sec); - di->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec); + inode_set_atime_to_ts(inode, current_time(inode)); + di->i_atime = cpu_to_le64(inode_get_atime_sec(inode)); + di->i_atime_nsec = cpu_to_le32(inode_get_atime_nsec(inode)); + ocfs2_update_inode_fsync_trans(handle, inode, 0); ocfs2_journal_dirty(handle, bh); out_commit: - ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle); + ocfs2_commit_trans(osb, handle); out: return ret; } -static int ocfs2_set_inode_size(handle_t *handle, +int ocfs2_set_inode_size(handle_t *handle, struct inode *inode, struct buffer_head *fe_bh, u64 new_i_size) @@ -306,7 +298,7 @@ static int ocfs2_set_inode_size(handle_t *handle, i_size_write(inode, new_i_size); inode->i_blocks = ocfs2_inode_sector_count(inode); - inode->i_ctime = inode->i_mtime = CURRENT_TIME; + inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode)); status = ocfs2_mark_inode_dirty(handle, inode, fe_bh); if (status < 0) { @@ -338,6 +330,7 @@ int ocfs2_simple_size_update(struct inode *inode, if (ret < 0) mlog_errno(ret); + ocfs2_update_inode_fsync_trans(handle, inode, 0); ocfs2_commit_trans(osb, handle); out: return ret; @@ -370,7 +363,7 @@ static int ocfs2_cow_file_pos(struct inode *inode, if (!(ext_flags & OCFS2_EXT_REFCOUNTED)) goto out; - return ocfs2_refcount_cow(inode, NULL, fe_bh, cpos, 1, cpos+1); + return ocfs2_refcount_cow(inode, fe_bh, cpos, 1, cpos+1); out: return status; @@ -426,12 +419,13 @@ static int ocfs2_orphan_for_truncate(struct ocfs2_super *osb, } i_size_write(inode, new_i_size); - inode->i_ctime = inode->i_mtime = CURRENT_TIME; + inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode)); di = (struct ocfs2_dinode *) fe_bh->b_data; di->i_size = cpu_to_le64(new_i_size); - di->i_ctime = di->i_mtime = cpu_to_le64(inode->i_ctime.tv_sec); - di->i_ctime_nsec = di->i_mtime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec); + di->i_ctime = di->i_mtime = cpu_to_le64(inode_get_ctime_sec(inode)); + di->i_ctime_nsec = di->i_mtime_nsec = cpu_to_le32(inode_get_ctime_nsec(inode)); + ocfs2_update_inode_fsync_trans(handle, inode, 0); ocfs2_journal_dirty(handle, fe_bh); @@ -441,7 +435,7 @@ out: return status; } -static int ocfs2_truncate_file(struct inode *inode, +int ocfs2_truncate_file(struct inode *inode, struct buffer_head *di_bh, u64 new_i_size) { @@ -474,11 +468,6 @@ static int ocfs2_truncate_file(struct inode *inode, goto bail; } - /* lets handle the simple truncate cases before doing any more - * cluster locking. */ - if (new_i_size == le64_to_cpu(fe->i_size)) - goto bail; - down_write(&OCFS2_I(inode)->ip_alloc_sem); ocfs2_resv_discard(&osb->osb_la_resmap, @@ -491,10 +480,11 @@ static int ocfs2_truncate_file(struct inode *inode, * greater than page size, so we have to truncate them * anyway. */ - unmap_mapping_range(inode->i_mapping, new_i_size + PAGE_SIZE - 1, 0, 1); - truncate_inode_pages(inode->i_mapping, new_i_size); if (OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL) { + unmap_mapping_range(inode->i_mapping, + new_i_size + PAGE_SIZE - 1, 0, 1); + truncate_inode_pages(inode->i_mapping, new_i_size); status = ocfs2_truncate_inline(inode, di_bh, new_i_size, i_size_read(inode), 1); if (status) @@ -513,6 +503,9 @@ static int ocfs2_truncate_file(struct inode *inode, goto bail_unlock_sem; } + unmap_mapping_range(inode->i_mapping, new_i_size + PAGE_SIZE - 1, 0, 1); + truncate_inode_pages(inode->i_mapping, new_i_size); + status = ocfs2_commit_truncate(osb, inode, di_bh); if (status < 0) { mlog_errno(status); @@ -551,19 +544,16 @@ int ocfs2_add_inode_data(struct ocfs2_super *osb, struct ocfs2_alloc_context *meta_ac, enum ocfs2_alloc_restarted *reason_ret) { - int ret; struct ocfs2_extent_tree et; ocfs2_init_dinode_extent_tree(&et, INODE_CACHE(inode), fe_bh); - ret = ocfs2_add_clusters_in_btree(handle, &et, logical_offset, - clusters_to_add, mark_unwritten, - data_ac, meta_ac, reason_ret); - - return ret; + return ocfs2_add_clusters_in_btree(handle, &et, logical_offset, + clusters_to_add, mark_unwritten, + data_ac, meta_ac, reason_ret); } -static int __ocfs2_extend_allocation(struct inode *inode, u32 logical_start, - u32 clusters_to_add, int mark_unwritten) +static int ocfs2_extend_allocation(struct inode *inode, u32 logical_start, + u32 clusters_to_add, int mark_unwritten) { int status = 0; int restart_func = 0; @@ -574,13 +564,13 @@ static int __ocfs2_extend_allocation(struct inode *inode, u32 logical_start, handle_t *handle = NULL; struct ocfs2_alloc_context *data_ac = NULL; struct ocfs2_alloc_context *meta_ac = NULL; - enum ocfs2_alloc_restarted why; + enum ocfs2_alloc_restarted why = RESTART_NONE; struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); struct ocfs2_extent_tree et; int did_quota = 0; /* - * This function only exists for file systems which don't + * Unwritten extent only exists for file systems which * support holes. */ BUG_ON(mark_unwritten && !ocfs2_sparse_alloc(osb)); @@ -603,8 +593,7 @@ restart_all: goto leave; } - credits = ocfs2_calc_extend_credits(osb->sb, &fe->id2.i_list, - clusters_to_add); + credits = ocfs2_calc_extend_credits(osb->sb, &fe->id2.i_list); handle = ocfs2_start_trans(osb, credits); if (IS_ERR(handle)) { status = PTR_ERR(handle); @@ -653,7 +642,7 @@ restarted_transaction: mlog_errno(status); goto leave; } - + ocfs2_update_inode_fsync_trans(handle, inode, 1); ocfs2_journal_dirty(handle, bh); spin_lock(&OCFS2_I(inode)->ip_lock); @@ -671,11 +660,7 @@ restarted_transaction: } else { BUG_ON(why != RESTART_TRANS); - /* TODO: This can be more intelligent. */ - credits = ocfs2_calc_extend_credits(osb->sb, - &fe->id2.i_list, - clusters_to_add); - status = ocfs2_extend_trans(handle, credits); + status = ocfs2_allocate_extend_trans(handle, 1); if (status < 0) { /* handle still has to be committed at * this point. */ @@ -723,7 +708,10 @@ leave: * While a write will already be ordering the data, a truncate will not. * Thus, we need to explicitly order the zeroed pages. */ -static handle_t *ocfs2_zero_start_ordered_transaction(struct inode *inode) +static handle_t *ocfs2_zero_start_ordered_transaction(struct inode *inode, + struct buffer_head *di_bh, + loff_t start_byte, + loff_t length) { struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); handle_t *handle = NULL; @@ -739,9 +727,17 @@ static handle_t *ocfs2_zero_start_ordered_transaction(struct inode *inode) goto out; } - ret = ocfs2_jbd2_file_inode(handle, inode); - if (ret < 0) + ret = ocfs2_jbd2_inode_add_write(handle, inode, start_byte, length); + if (ret < 0) { + mlog_errno(ret); + goto out; + } + + ret = ocfs2_journal_access_di(handle, INODE_CACHE(inode), di_bh, + OCFS2_JOURNAL_ACCESS_WRITE); + if (ret) mlog_errno(ret); + ocfs2_update_inode_fsync_trans(handle, inode, 1); out: if (ret) { @@ -756,31 +752,41 @@ out: * to be too fragile to do exactly what we need without us having to * worry about recursive locking in ->write_begin() and ->write_end(). */ static int ocfs2_write_zero_page(struct inode *inode, u64 abs_from, - u64 abs_to) + u64 abs_to, struct buffer_head *di_bh) { struct address_space *mapping = inode->i_mapping; - struct page *page; - unsigned long index = abs_from >> PAGE_CACHE_SHIFT; - handle_t *handle = NULL; + struct folio *folio; + unsigned long index = abs_from >> PAGE_SHIFT; + handle_t *handle; int ret = 0; unsigned zero_from, zero_to, block_start, block_end; + struct ocfs2_dinode *di = (struct ocfs2_dinode *)di_bh->b_data; BUG_ON(abs_from >= abs_to); - BUG_ON(abs_to > (((u64)index + 1) << PAGE_CACHE_SHIFT)); + BUG_ON(abs_to > (((u64)index + 1) << PAGE_SHIFT)); BUG_ON(abs_from & (inode->i_blkbits - 1)); - page = find_or_create_page(mapping, index, GFP_NOFS); - if (!page) { - ret = -ENOMEM; - mlog_errno(ret); + handle = ocfs2_zero_start_ordered_transaction(inode, di_bh, + abs_from, + abs_to - abs_from); + if (IS_ERR(handle)) { + ret = PTR_ERR(handle); goto out; } - /* Get the offsets within the page that we want to zero */ - zero_from = abs_from & (PAGE_CACHE_SIZE - 1); - zero_to = abs_to & (PAGE_CACHE_SIZE - 1); + folio = __filemap_get_folio(mapping, index, + FGP_LOCK | FGP_ACCESSED | FGP_CREAT, GFP_NOFS); + if (IS_ERR(folio)) { + ret = PTR_ERR(folio); + mlog_errno(ret); + goto out_commit_trans; + } + + /* Get the offsets within the folio that we want to zero */ + zero_from = offset_in_folio(folio, abs_from); + zero_to = offset_in_folio(folio, abs_to); if (!zero_to) - zero_to = PAGE_CACHE_SIZE; + zero_to = folio_size(folio); trace_ocfs2_write_zero_page( (unsigned long long)OCFS2_I(inode)->ip_blkno, @@ -791,44 +797,48 @@ static int ocfs2_write_zero_page(struct inode *inode, u64 abs_from, /* We know that zero_from is block aligned */ for (block_start = zero_from; block_start < zero_to; block_start = block_end) { - block_end = block_start + (1 << inode->i_blkbits); + block_end = block_start + i_blocksize(inode); /* * block_start is block-aligned. Bump it by one to force * __block_write_begin and block_commit_write to zero the * whole block. */ - ret = __block_write_begin(page, block_start + 1, 0, + ret = __block_write_begin(folio, block_start + 1, 0, ocfs2_get_block); if (ret < 0) { mlog_errno(ret); goto out_unlock; } - if (!handle) { - handle = ocfs2_zero_start_ordered_transaction(inode); - if (IS_ERR(handle)) { - ret = PTR_ERR(handle); - handle = NULL; - break; - } - } /* must not update i_size! */ - ret = block_commit_write(page, block_start + 1, - block_start + 1); - if (ret < 0) - mlog_errno(ret); - else - ret = 0; + block_commit_write(folio, block_start + 1, block_start + 1); } - if (handle) - ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle); + /* + * fs-writeback will release the dirty pages without page lock + * whose offset are over inode size, the release happens at + * block_write_full_folio(). + */ + i_size_write(inode, abs_to); + inode->i_blocks = ocfs2_inode_sector_count(inode); + di->i_size = cpu_to_le64((u64)i_size_read(inode)); + inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode)); + di->i_mtime = di->i_ctime = cpu_to_le64(inode_get_mtime_sec(inode)); + di->i_ctime_nsec = cpu_to_le32(inode_get_mtime_nsec(inode)); + di->i_mtime_nsec = di->i_ctime_nsec; + if (handle) { + ocfs2_journal_dirty(handle, di_bh); + ocfs2_update_inode_fsync_trans(handle, inode, 1); + } out_unlock: - unlock_page(page); - page_cache_release(page); + folio_unlock(folio); + folio_put(folio); +out_commit_trans: + if (handle) + ocfs2_commit_trans(OCFS2_SB(inode->i_sb), handle); out: return ret; } @@ -899,7 +909,7 @@ static int ocfs2_zero_extend_get_range(struct inode *inode, zero_clusters = last_cpos - zero_cpos; if (needs_cow) { - rc = ocfs2_refcount_cow(inode, NULL, di_bh, zero_cpos, + rc = ocfs2_refcount_cow(inode, di_bh, zero_cpos, zero_clusters, UINT_MAX); if (rc) { mlog_errno(rc); @@ -920,7 +930,7 @@ out: * has made sure that the entire range needs zeroing. */ static int ocfs2_zero_extend_range(struct inode *inode, u64 range_start, - u64 range_end) + u64 range_end, struct buffer_head *di_bh) { int rc = 0; u64 next_pos; @@ -933,10 +943,10 @@ static int ocfs2_zero_extend_range(struct inode *inode, u64 range_start, BUG_ON(range_start >= range_end); while (zero_pos < range_end) { - next_pos = (zero_pos & PAGE_CACHE_MASK) + PAGE_CACHE_SIZE; + next_pos = (zero_pos & PAGE_MASK) + PAGE_SIZE; if (next_pos > range_end) next_pos = range_end; - rc = ocfs2_write_zero_page(inode, zero_pos, next_pos); + rc = ocfs2_write_zero_page(inode, zero_pos, next_pos, di_bh); if (rc < 0) { mlog_errno(rc); break; @@ -982,7 +992,7 @@ int ocfs2_zero_extend(struct inode *inode, struct buffer_head *di_bh, range_end = zero_to_size; ret = ocfs2_zero_extend_range(inode, range_start, - range_end); + range_end, di_bh); if (ret) { mlog_errno(ret); break; @@ -1004,7 +1014,7 @@ int ocfs2_extend_no_holes(struct inode *inode, struct buffer_head *di_bh, * Only quota files call this without a bh, and they can't be * refcounted. */ - BUG_ON(!di_bh && (oi->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL)); + BUG_ON(!di_bh && ocfs2_is_refcount_inode(inode)); BUG_ON(!di_bh && !(oi->ip_flags & OCFS2_INODE_SYSTEM_FILE)); clusters_to_add = ocfs2_clusters_for_bytes(inode->i_sb, new_i_size); @@ -1014,8 +1024,8 @@ int ocfs2_extend_no_holes(struct inode *inode, struct buffer_head *di_bh, clusters_to_add -= oi->ip_clusters; if (clusters_to_add) { - ret = __ocfs2_extend_allocation(inode, oi->ip_clusters, - clusters_to_add, 0); + ret = ocfs2_extend_allocation(inode, oi->ip_clusters, + clusters_to_add, 0); if (ret) { mlog_errno(ret); goto out; @@ -1055,7 +1065,7 @@ static int ocfs2_extend_file(struct inode *inode, /* * The alloc sem blocks people in read/write from reading our * allocation until we're done changing it. We depend on - * i_mutex to block other extend/truncate calls while we're + * i_rwsem to block other extend/truncate calls while we're * here. We even have to hold it for sparse files because there * might be some tail zeroing. */ @@ -1101,23 +1111,30 @@ out: return ret; } -int ocfs2_setattr(struct dentry *dentry, struct iattr *attr) +int ocfs2_setattr(struct mnt_idmap *idmap, struct dentry *dentry, + struct iattr *attr) { int status = 0, size_change; - struct inode *inode = dentry->d_inode; + int inode_locked = 0; + struct inode *inode = d_inode(dentry); struct super_block *sb = inode->i_sb; struct ocfs2_super *osb = OCFS2_SB(sb); struct buffer_head *bh = NULL; handle_t *handle = NULL; struct dquot *transfer_to[MAXQUOTAS] = { }; int qtype; + int had_lock; + struct ocfs2_lock_holder oh; trace_ocfs2_setattr(inode, dentry, (unsigned long long)OCFS2_I(inode)->ip_blkno, dentry->d_name.len, dentry->d_name.name, - attr->ia_valid, attr->ia_mode, - from_kuid(&init_user_ns, attr->ia_uid), - from_kgid(&init_user_ns, attr->ia_gid)); + attr->ia_valid, + attr->ia_valid & ATTR_MODE ? attr->ia_mode : 0, + attr->ia_valid & ATTR_UID ? + from_kuid(&init_user_ns, attr->ia_uid) : 0, + attr->ia_valid & ATTR_GID ? + from_kgid(&init_user_ns, attr->ia_gid) : 0); /* ensuring we don't even attempt to truncate a symlink */ if (S_ISLNK(inode->i_mode)) @@ -1128,14 +1145,24 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr) if (!(attr->ia_valid & OCFS2_VALID_ATTRS)) return 0; - status = inode_change_ok(inode, attr); + status = setattr_prepare(&nop_mnt_idmap, dentry, attr); if (status) return status; - if (is_quota_modification(inode, attr)) - dquot_initialize(inode); + if (is_quota_modification(&nop_mnt_idmap, inode, attr)) { + status = dquot_initialize(inode); + if (status) + return status; + } size_change = S_ISREG(inode->i_mode) && attr->ia_valid & ATTR_SIZE; if (size_change) { + /* + * Here we should wait dio to finish before inode lock + * to avoid a deadlock between ocfs2_setattr() and + * ocfs2_dio_end_io_write() + */ + inode_dio_wait(inode); + status = ocfs2_rw_lock(inode, 1); if (status < 0) { mlog_errno(status); @@ -1143,21 +1170,39 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr) } } - status = ocfs2_inode_lock(inode, &bh, 1); - if (status < 0) { - if (status != -ENOENT) - mlog_errno(status); + had_lock = ocfs2_inode_lock_tracker(inode, &bh, 1, &oh); + if (had_lock < 0) { + status = had_lock; goto bail_unlock_rw; + } else if (had_lock) { + /* + * As far as we know, ocfs2_setattr() could only be the first + * VFS entry point in the call chain of recursive cluster + * locking issue. + * + * For instance: + * chmod_common() + * notify_change() + * ocfs2_setattr() + * posix_acl_chmod() + * ocfs2_iop_get_acl() + * + * But, we're not 100% sure if it's always true, because the + * ordering of the VFS entry points in the call chain is out + * of our control. So, we'd better dump the stack here to + * catch the other cases of recursive locking. + */ + mlog(ML_ERROR, "Another case of recursive locking:\n"); + dump_stack(); } + inode_locked = 1; - if (size_change && attr->ia_size != i_size_read(inode)) { + if (size_change) { status = inode_newsize_ok(inode, attr->ia_size); if (status) goto bail_unlock; - inode_dio_wait(inode); - - if (i_size_read(inode) > attr->ia_size) { + if (i_size_read(inode) >= attr->ia_size) { if (ocfs2_should_order_data(inode)) { status = ocfs2_begin_ordered_truncate(inode, attr->ia_size); @@ -1186,8 +1231,9 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr) && OCFS2_HAS_RO_COMPAT_FEATURE(sb, OCFS2_FEATURE_RO_COMPAT_USRQUOTA)) { transfer_to[USRQUOTA] = dqget(sb, make_kqid_uid(attr->ia_uid)); - if (!transfer_to[USRQUOTA]) { - status = -ESRCH; + if (IS_ERR(transfer_to[USRQUOTA])) { + status = PTR_ERR(transfer_to[USRQUOTA]); + transfer_to[USRQUOTA] = NULL; goto bail_unlock; } } @@ -1195,31 +1241,34 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr) && OCFS2_HAS_RO_COMPAT_FEATURE(sb, OCFS2_FEATURE_RO_COMPAT_GRPQUOTA)) { transfer_to[GRPQUOTA] = dqget(sb, make_kqid_gid(attr->ia_gid)); - if (!transfer_to[GRPQUOTA]) { - status = -ESRCH; + if (IS_ERR(transfer_to[GRPQUOTA])) { + status = PTR_ERR(transfer_to[GRPQUOTA]); + transfer_to[GRPQUOTA] = NULL; goto bail_unlock; } } + down_write(&OCFS2_I(inode)->ip_alloc_sem); handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS + 2 * ocfs2_quota_trans_credits(sb)); if (IS_ERR(handle)) { status = PTR_ERR(handle); mlog_errno(status); - goto bail_unlock; + goto bail_unlock_alloc; } status = __dquot_transfer(inode, transfer_to); if (status < 0) goto bail_commit; } else { + down_write(&OCFS2_I(inode)->ip_alloc_sem); handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS); if (IS_ERR(handle)) { status = PTR_ERR(handle); mlog_errno(status); - goto bail_unlock; + goto bail_unlock_alloc; } } - setattr_copy(inode, attr); + setattr_copy(&nop_mnt_idmap, inode, attr); mark_inode_dirty(inode); status = ocfs2_mark_inode_dirty(handle, inode, bh); @@ -1228,44 +1277,58 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr) bail_commit: ocfs2_commit_trans(osb, handle); +bail_unlock_alloc: + up_write(&OCFS2_I(inode)->ip_alloc_sem); bail_unlock: - ocfs2_inode_unlock(inode, 1); + if (status && inode_locked) { + ocfs2_inode_unlock_tracker(inode, 1, &oh, had_lock); + inode_locked = 0; + } bail_unlock_rw: if (size_change) ocfs2_rw_unlock(inode, 1); bail: - brelse(bh); /* Release quota pointers in case we acquired them */ - for (qtype = 0; qtype < MAXQUOTAS; qtype++) + for (qtype = 0; qtype < OCFS2_MAXQUOTAS; qtype++) dqput(transfer_to[qtype]); if (!status && attr->ia_valid & ATTR_MODE) { - status = ocfs2_acl_chmod(inode); + status = ocfs2_acl_chmod(inode, bh); if (status < 0) mlog_errno(status); } + if (inode_locked) + ocfs2_inode_unlock_tracker(inode, 1, &oh, had_lock); + brelse(bh); return status; } -int ocfs2_getattr(struct vfsmount *mnt, - struct dentry *dentry, - struct kstat *stat) +int ocfs2_getattr(struct mnt_idmap *idmap, const struct path *path, + struct kstat *stat, u32 request_mask, unsigned int flags) { - struct inode *inode = dentry->d_inode; - struct super_block *sb = dentry->d_inode->i_sb; + struct inode *inode = d_inode(path->dentry); + struct super_block *sb = path->dentry->d_sb; struct ocfs2_super *osb = sb->s_fs_info; int err; - err = ocfs2_inode_revalidate(dentry); + err = ocfs2_inode_revalidate(path->dentry); if (err) { if (err != -ENOENT) mlog_errno(err); goto bail; } - generic_fillattr(inode, stat); + generic_fillattr(&nop_mnt_idmap, request_mask, inode, stat); + /* + * If there is inline data in the inode, the inode will normally not + * have data blocks allocated (it may have an external xattr block). + * Report at least one sector for such files, so tools like tar, rsync, + * others don't incorrectly think the file is completely sparse. + */ + if (unlikely(OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL)) + stat->blocks += (stat->size + 511)>>9; /* We set the blksize from the cluster size for performance */ stat->blksize = osb->s_clustersize; @@ -1274,23 +1337,35 @@ bail: return err; } -int ocfs2_permission(struct inode *inode, int mask) +int ocfs2_permission(struct mnt_idmap *idmap, struct inode *inode, + int mask) { - int ret; + int ret, had_lock; + struct ocfs2_lock_holder oh; if (mask & MAY_NOT_BLOCK) return -ECHILD; - ret = ocfs2_inode_lock(inode, NULL, 0); - if (ret) { - if (ret != -ENOENT) - mlog_errno(ret); + had_lock = ocfs2_inode_lock_tracker(inode, NULL, 0, &oh); + if (had_lock < 0) { + ret = had_lock; goto out; + } else if (had_lock) { + /* See comments in ocfs2_setattr() for details. + * The call chain of this case could be: + * do_sys_open() + * may_open() + * inode_permission() + * ocfs2_permission() + * ocfs2_iop_get_acl() + */ + mlog(ML_ERROR, "Another case of recursive locking:\n"); + dump_stack(); } - ret = generic_permission(inode, mask); + ret = generic_permission(&nop_mnt_idmap, inode, mask); - ocfs2_inode_unlock(inode, 0); + ocfs2_inode_unlock_tracker(inode, 0, &oh, had_lock); out: return ret; } @@ -1327,6 +1402,7 @@ static int __ocfs2_write_remove_suid(struct inode *inode, di = (struct ocfs2_dinode *) bh->b_data; di->i_mode = cpu_to_le16(inode->i_mode); + ocfs2_update_inode_fsync_trans(handle, inode, 0); ocfs2_journal_dirty(handle, bh); @@ -1336,44 +1412,6 @@ out: return ret; } -/* - * Will look for holes and unwritten extents in the range starting at - * pos for count bytes (inclusive). - */ -static int ocfs2_check_range_for_holes(struct inode *inode, loff_t pos, - size_t count) -{ - int ret = 0; - unsigned int extent_flags; - u32 cpos, clusters, extent_len, phys_cpos; - struct super_block *sb = inode->i_sb; - - cpos = pos >> OCFS2_SB(sb)->s_clustersize_bits; - clusters = ocfs2_clusters_for_bytes(sb, pos + count) - cpos; - - while (clusters) { - ret = ocfs2_get_clusters(inode, cpos, &phys_cpos, &extent_len, - &extent_flags); - if (ret < 0) { - mlog_errno(ret); - goto out; - } - - if (phys_cpos == 0 || (extent_flags & OCFS2_EXT_UNWRITTEN)) { - ret = 1; - break; - } - - if (extent_len > clusters) - extent_len = clusters; - - clusters -= extent_len; - cpos += extent_len; - } -out: - return ret; -} - static int ocfs2_write_remove_suid(struct inode *inode) { int ret; @@ -1455,7 +1493,7 @@ static int ocfs2_allocate_unwritten_extents(struct inode *inode, goto next; } - ret = __ocfs2_extend_allocation(inode, cpos, alloc_size, 1); + ret = ocfs2_extend_allocation(inode, cpos, alloc_size, 1); if (ret) { if (ret != -ENOSPC) mlog_errno(ret); @@ -1495,14 +1533,55 @@ static void ocfs2_truncate_cluster_pages(struct inode *inode, u64 byte_start, } } +/* + * zero out partial blocks of one cluster. + * + * start: file offset where zero starts, will be made upper block aligned. + * len: it will be trimmed to the end of current cluster if "start + len" + * is bigger than it. + */ +static int ocfs2_zeroout_partial_cluster(struct inode *inode, + u64 start, u64 len) +{ + int ret; + u64 start_block, end_block, nr_blocks; + u64 p_block, offset; + u32 cluster, p_cluster, nr_clusters; + struct super_block *sb = inode->i_sb; + u64 end = ocfs2_align_bytes_to_clusters(sb, start); + + if (start + len < end) + end = start + len; + + start_block = ocfs2_blocks_for_bytes(sb, start); + end_block = ocfs2_blocks_for_bytes(sb, end); + nr_blocks = end_block - start_block; + if (!nr_blocks) + return 0; + + cluster = ocfs2_bytes_to_clusters(sb, start); + ret = ocfs2_get_clusters(inode, cluster, &p_cluster, + &nr_clusters, NULL); + if (ret) + return ret; + if (!p_cluster) + return 0; + + offset = start_block - ocfs2_clusters_to_blocks(sb, cluster); + p_block = ocfs2_clusters_to_blocks(sb, p_cluster) + offset; + return sb_issue_zeroout(sb, p_block, nr_blocks, GFP_NOFS); +} + static int ocfs2_zero_partial_clusters(struct inode *inode, u64 start, u64 len) { int ret = 0; - u64 tmpend, end = start + len; + u64 tmpend = 0; + u64 end = start + len; struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); unsigned int csize = osb->s_clustersize; handle_t *handle; + loff_t isize = i_size_read(inode); /* * The "start" and "end" values are NOT necessarily part of @@ -1523,6 +1602,26 @@ static int ocfs2_zero_partial_clusters(struct inode *inode, if ((start & (csize - 1)) == 0 && (end & (csize - 1)) == 0) goto out; + /* No page cache for EOF blocks, issue zero out to disk. */ + if (end > isize) { + /* + * zeroout eof blocks in last cluster starting from + * "isize" even "start" > "isize" because it is + * complicated to zeroout just at "start" as "start" + * may be not aligned with block size, buffer write + * would be required to do that, but out of eof buffer + * write is not supported. + */ + ret = ocfs2_zeroout_partial_cluster(inode, isize, + end - isize); + if (ret) { + mlog_errno(ret); + goto out; + } + if (start >= isize) + goto out; + end = isize; + } handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS); if (IS_ERR(handle)) { ret = PTR_ERR(handle); @@ -1531,18 +1630,31 @@ static int ocfs2_zero_partial_clusters(struct inode *inode, } /* - * We want to get the byte offset of the end of the 1st cluster. + * If start is on a cluster boundary and end is somewhere in another + * cluster, we have not COWed the cluster starting at start, unless + * end is also within the same cluster. So, in this case, we skip this + * first call to ocfs2_zero_range_for_truncate() truncate and move on + * to the next one. */ - tmpend = (u64)osb->s_clustersize + (start & ~(osb->s_clustersize - 1)); - if (tmpend > end) - tmpend = end; + if ((start & (csize - 1)) != 0) { + /* + * We want to get the byte offset of the end of the 1st + * cluster. + */ + tmpend = (u64)osb->s_clustersize + + (start & ~(osb->s_clustersize - 1)); + if (tmpend > end) + tmpend = end; - trace_ocfs2_zero_partial_clusters_range1((unsigned long long)start, - (unsigned long long)tmpend); + trace_ocfs2_zero_partial_clusters_range1( + (unsigned long long)start, + (unsigned long long)tmpend); - ret = ocfs2_zero_range_for_truncate(inode, handle, start, tmpend); - if (ret) - mlog_errno(ret); + ret = ocfs2_zero_range_for_truncate(inode, handle, start, + tmpend); + if (ret) + mlog_errno(ret); + } if (tmpend < end) { /* @@ -1559,6 +1671,7 @@ static int ocfs2_zero_partial_clusters(struct inode *inode, if (ret) mlog_errno(ret); } + ocfs2_update_inode_fsync_trans(handle, inode, 1); ocfs2_commit_trans(osb, handle); out: @@ -1645,9 +1758,9 @@ static void ocfs2_calc_trunc_pos(struct inode *inode, *done = ret; } -static int ocfs2_remove_inode_range(struct inode *inode, - struct buffer_head *di_bh, u64 byte_start, - u64 byte_len) +int ocfs2_remove_inode_range(struct inode *inode, + struct buffer_head *di_bh, u64 byte_start, + u64 byte_len) { int ret = 0, flags = 0, done = 0, i; u32 trunc_start, trunc_len, trunc_end, trunc_cpos, phys_cpos; @@ -1674,6 +1787,14 @@ static int ocfs2_remove_inode_range(struct inode *inode, return 0; if (OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL) { + int id_count = ocfs2_max_inline_data_with_xattr(inode->i_sb, di); + + if (byte_start > id_count || byte_start + byte_len > id_count) { + ret = -EINVAL; + mlog_errno(ret); + goto out; + } + ret = ocfs2_truncate_inline(inode, di_bh, byte_start, byte_start + byte_len, 0); if (ret) { @@ -1697,8 +1818,7 @@ static int ocfs2_remove_inode_range(struct inode *inode, * within one cluster(means is not exactly aligned to clustersize). */ - if (OCFS2_I(inode)->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL) { - + if (ocfs2_is_refcount_inode(inode)) { ret = ocfs2_cow_file_pos(inode, di_bh, byte_start); if (ret) { mlog_errno(ret); @@ -1786,7 +1906,7 @@ static int ocfs2_remove_inode_range(struct inode *inode, ret = ocfs2_remove_btree_range(inode, &et, trunc_cpos, phys_cpos, trunc_len, flags, - &dealloc, refcount_loc); + &dealloc, refcount_loc, false); if (ret < 0) { mlog_errno(ret); goto out; @@ -1800,6 +1920,7 @@ static int ocfs2_remove_inode_range(struct inode *inode, ocfs2_truncate_cluster_pages(inode, byte_start, byte_len); out: + ocfs2_free_path(path); ocfs2_schedule_truncate_log_flush(osb, 1); ocfs2_run_deallocs(osb, &dealloc); @@ -1816,7 +1937,7 @@ static int __ocfs2_change_file_space(struct file *file, struct inode *inode, { int ret; s64 llen; - loff_t size; + loff_t size, orig_isize; struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); struct buffer_head *di_bh = NULL; handle_t *handle; @@ -1825,8 +1946,10 @@ static int __ocfs2_change_file_space(struct file *file, struct inode *inode, if (ocfs2_is_hard_readonly(osb) || ocfs2_is_soft_readonly(osb)) return -EROFS; - mutex_lock(&inode->i_mutex); + inode_lock(inode); + /* Wait all existing dio workers, newcomers will block on i_rwsem */ + inode_dio_wait(inode); /* * This prevents concurrent writes on other nodes */ @@ -1873,14 +1996,15 @@ static int __ocfs2_change_file_space(struct file *file, struct inode *inode, } size = sr->l_start + sr->l_len; - if (cmd == OCFS2_IOC_RESVSP || cmd == OCFS2_IOC_RESVSP64) { + if (cmd == OCFS2_IOC_RESVSP || cmd == OCFS2_IOC_RESVSP64 || + cmd == OCFS2_IOC_UNRESVSP || cmd == OCFS2_IOC_UNRESVSP64) { if (sr->l_len <= 0) { ret = -EINVAL; goto out_inode_unlock; } } - if (file && should_remove_suid(file->f_path.dentry)) { + if (file && setattr_should_drop_suidgid(&nop_mnt_idmap, file_inode(file))) { ret = __ocfs2_write_remove_suid(inode, di_bh); if (ret) { mlog_errno(ret); @@ -1907,6 +2031,15 @@ static int __ocfs2_change_file_space(struct file *file, struct inode *inode, default: ret = -EINVAL; } + + orig_isize = i_size_read(inode); + /* zeroout eof blocks in the cluster. */ + if (!ret && change_size && orig_isize < size) { + ret = ocfs2_zeroout_partial_cluster(inode, orig_isize, + size - orig_isize); + if (!ret) + i_size_write(inode, size); + } up_write(&OCFS2_I(inode)->ip_alloc_sem); if (ret) { mlog_errno(ret); @@ -1923,10 +2056,7 @@ static int __ocfs2_change_file_space(struct file *file, struct inode *inode, goto out_inode_unlock; } - if (change_size && i_size_read(inode) < size) - i_size_write(inode, size); - - inode->i_ctime = inode->i_mtime = CURRENT_TIME; + inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode)); ret = ocfs2_mark_inode_dirty(handle, inode, di_bh); if (ret < 0) mlog_errno(ret); @@ -1943,7 +2073,7 @@ out_rw_unlock: ocfs2_rw_unlock(inode, 1); out: - mutex_unlock(&inode->i_mutex); + inode_unlock(inode); return ret; } @@ -1983,14 +2113,20 @@ static long ocfs2_fallocate(struct file *file, int mode, loff_t offset, struct ocfs2_space_resv sr; int change_size = 1; int cmd = OCFS2_IOC_RESVSP64; + int ret = 0; if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE)) return -EOPNOTSUPP; if (!ocfs2_writes_unwritten_extents(osb)) return -EOPNOTSUPP; - if (mode & FALLOC_FL_KEEP_SIZE) + if (mode & FALLOC_FL_KEEP_SIZE) { change_size = 0; + } else { + ret = inode_newsize_ok(inode, offset + len); + if (ret) + return ret; + } if (mode & FALLOC_FL_PUNCH_HOLE) cmd = OCFS2_IOC_UNRESVSP64; @@ -2012,7 +2148,7 @@ int ocfs2_check_range_for_refcount(struct inode *inode, loff_t pos, struct super_block *sb = inode->i_sb; if (!ocfs2_refcount_tree(OCFS2_SB(inode->i_sb)) || - !(OCFS2_I(inode)->ip_dyn_features & OCFS2_HAS_REFCOUNT_FL) || + !ocfs2_is_refcount_inode(inode) || OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL) return 0; @@ -2042,13 +2178,6 @@ out: return ret; } -static void ocfs2_aiodio_wait(struct inode *inode) -{ - wait_queue_head_t *wq = ocfs2_ioend_wq(inode); - - wait_event(*wq, (atomic_read(&OCFS2_I(inode)->ip_unaligned_aio) == 0)); -} - static int ocfs2_is_io_unaligned(struct inode *inode, size_t count, loff_t pos) { int blockmask = inode->i_sb->s_blocksize - 1; @@ -2059,57 +2188,107 @@ static int ocfs2_is_io_unaligned(struct inode *inode, size_t count, loff_t pos) return 0; } -static int ocfs2_prepare_inode_for_refcount(struct inode *inode, - struct file *file, - loff_t pos, size_t count, - int *meta_level) +static int ocfs2_inode_lock_for_extent_tree(struct inode *inode, + struct buffer_head **di_bh, + int meta_level, + int write_sem, + int wait) { - int ret; - struct buffer_head *di_bh = NULL; - u32 cpos = pos >> OCFS2_SB(inode->i_sb)->s_clustersize_bits; - u32 clusters = - ocfs2_clusters_for_bytes(inode->i_sb, pos + count) - cpos; + int ret = 0; - ret = ocfs2_inode_lock(inode, &di_bh, 1); - if (ret) { - mlog_errno(ret); + if (wait) + ret = ocfs2_inode_lock(inode, di_bh, meta_level); + else + ret = ocfs2_try_inode_lock(inode, di_bh, meta_level); + if (ret < 0) goto out; + + if (wait) { + if (write_sem) + down_write(&OCFS2_I(inode)->ip_alloc_sem); + else + down_read(&OCFS2_I(inode)->ip_alloc_sem); + } else { + if (write_sem) + ret = down_write_trylock(&OCFS2_I(inode)->ip_alloc_sem); + else + ret = down_read_trylock(&OCFS2_I(inode)->ip_alloc_sem); + + if (!ret) { + ret = -EAGAIN; + goto out_unlock; + } } - *meta_level = 1; + return ret; - ret = ocfs2_refcount_cow(inode, file, di_bh, cpos, clusters, UINT_MAX); - if (ret) - mlog_errno(ret); +out_unlock: + brelse(*di_bh); + *di_bh = NULL; + ocfs2_inode_unlock(inode, meta_level); out: - brelse(di_bh); return ret; } +static void ocfs2_inode_unlock_for_extent_tree(struct inode *inode, + struct buffer_head **di_bh, + int meta_level, + int write_sem) +{ + if (write_sem) + up_write(&OCFS2_I(inode)->ip_alloc_sem); + else + up_read(&OCFS2_I(inode)->ip_alloc_sem); + + brelse(*di_bh); + *di_bh = NULL; + + if (meta_level >= 0) + ocfs2_inode_unlock(inode, meta_level); +} + static int ocfs2_prepare_inode_for_write(struct file *file, - loff_t *ppos, - size_t count, - int appending, - int *direct_io, - int *has_refcount) + loff_t pos, size_t count, int wait) { - int ret = 0, meta_level = 0; + int ret = 0, meta_level = 0, overwrite_io = 0; + int write_sem = 0; struct dentry *dentry = file->f_path.dentry; - struct inode *inode = dentry->d_inode; - loff_t saved_pos = 0, end; + struct inode *inode = d_inode(dentry); + struct buffer_head *di_bh = NULL; + u32 cpos; + u32 clusters; /* * We start with a read level meta lock and only jump to an ex * if we need to make modifications here. */ for(;;) { - ret = ocfs2_inode_lock(inode, NULL, meta_level); + ret = ocfs2_inode_lock_for_extent_tree(inode, + &di_bh, + meta_level, + write_sem, + wait); if (ret < 0) { - meta_level = -1; - mlog_errno(ret); + if (ret != -EAGAIN) + mlog_errno(ret); goto out; } + /* + * Check if IO will overwrite allocated blocks in case + * IOCB_NOWAIT flag is set. + */ + if (!wait && !overwrite_io) { + overwrite_io = 1; + + ret = ocfs2_overwrite_io(inode, di_bh, pos, count); + if (ret < 0) { + if (ret != -EAGAIN) + mlog_errno(ret); + goto out_unlock; + } + } + /* Clear suid / sgid if necessary. We do this here * instead of later in the write path because * remove_suid() calls ->setattr without any hint that @@ -2119,9 +2298,12 @@ static int ocfs2_prepare_inode_for_write(struct file *file, * inode. There's also the dinode i_size state which * can be lost via setattr during extending writes (we * set inode->i_size at the end of a write. */ - if (should_remove_suid(dentry)) { + if (setattr_should_drop_suidgid(&nop_mnt_idmap, inode)) { if (meta_level == 0) { - ocfs2_inode_unlock(inode, meta_level); + ocfs2_inode_unlock_for_extent_tree(inode, + &di_bh, + meta_level, + write_sem); meta_level = 1; continue; } @@ -2133,146 +2315,106 @@ static int ocfs2_prepare_inode_for_write(struct file *file, } } - /* work on a copy of ppos until we're sure that we won't have - * to recalculate it due to relocking. */ - if (appending) - saved_pos = i_size_read(inode); - else - saved_pos = *ppos; - - end = saved_pos + count; - - ret = ocfs2_check_range_for_refcount(inode, saved_pos, count); + ret = ocfs2_check_range_for_refcount(inode, pos, count); if (ret == 1) { - ocfs2_inode_unlock(inode, meta_level); - meta_level = -1; - - ret = ocfs2_prepare_inode_for_refcount(inode, - file, - saved_pos, - count, - &meta_level); - if (has_refcount) - *has_refcount = 1; - if (direct_io) - *direct_io = 0; + ocfs2_inode_unlock_for_extent_tree(inode, + &di_bh, + meta_level, + write_sem); + meta_level = 1; + write_sem = 1; + ret = ocfs2_inode_lock_for_extent_tree(inode, + &di_bh, + meta_level, + write_sem, + wait); + if (ret < 0) { + if (ret != -EAGAIN) + mlog_errno(ret); + goto out; + } + + cpos = pos >> OCFS2_SB(inode->i_sb)->s_clustersize_bits; + clusters = + ocfs2_clusters_for_bytes(inode->i_sb, pos + count) - cpos; + ret = ocfs2_refcount_cow(inode, di_bh, cpos, clusters, UINT_MAX); } if (ret < 0) { - mlog_errno(ret); + if (ret != -EAGAIN) + mlog_errno(ret); goto out_unlock; } - /* - * Skip the O_DIRECT checks if we don't need - * them. - */ - if (!direct_io || !(*direct_io)) - break; - - /* - * There's no sane way to do direct writes to an inode - * with inline data. - */ - if (OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL) { - *direct_io = 0; - break; - } - - /* - * Allowing concurrent direct writes means - * i_size changes wouldn't be synchronized, so - * one node could wind up truncating another - * nodes writes. - */ - if (end > i_size_read(inode)) { - *direct_io = 0; - break; - } - - /* - * We don't fill holes during direct io, so - * check for them here. If any are found, the - * caller will have to retake some cluster - * locks and initiate the io as buffered. - */ - ret = ocfs2_check_range_for_holes(inode, saved_pos, count); - if (ret == 1) { - *direct_io = 0; - ret = 0; - } else if (ret < 0) - mlog_errno(ret); break; } - if (appending) - *ppos = saved_pos; - out_unlock: trace_ocfs2_prepare_inode_for_write(OCFS2_I(inode)->ip_blkno, - saved_pos, appending, count, - direct_io, has_refcount); + pos, count, wait); - if (meta_level >= 0) - ocfs2_inode_unlock(inode, meta_level); + ocfs2_inode_unlock_for_extent_tree(inode, + &di_bh, + meta_level, + write_sem); out: return ret; } -static ssize_t ocfs2_file_aio_write(struct kiocb *iocb, - const struct iovec *iov, - unsigned long nr_segs, - loff_t pos) +static ssize_t ocfs2_file_write_iter(struct kiocb *iocb, + struct iov_iter *from) { - int ret, direct_io, appending, rw_level, have_alloc_sem = 0; - int can_do_direct, has_refcount = 0; + int rw_level; ssize_t written = 0; - size_t ocount; /* original count */ - size_t count; /* after file limit checks */ - loff_t old_size, *ppos = &iocb->ki_pos; - u32 old_clusters; + ssize_t ret; + size_t count = iov_iter_count(from); struct file *file = iocb->ki_filp; struct inode *inode = file_inode(file); struct ocfs2_super *osb = OCFS2_SB(inode->i_sb); int full_coherency = !(osb->s_mount_opt & OCFS2_MOUNT_COHERENCY_BUFFERED); - int unaligned_dio = 0; + void *saved_ki_complete = NULL; + int append_write = ((iocb->ki_pos + count) >= + i_size_read(inode) ? 1 : 0); + int direct_io = iocb->ki_flags & IOCB_DIRECT ? 1 : 0; + int nowait = iocb->ki_flags & IOCB_NOWAIT ? 1 : 0; - trace_ocfs2_file_aio_write(inode, file, file->f_path.dentry, + trace_ocfs2_file_write_iter(inode, file, file->f_path.dentry, (unsigned long long)OCFS2_I(inode)->ip_blkno, file->f_path.dentry->d_name.len, file->f_path.dentry->d_name.name, - (unsigned int)nr_segs); + (unsigned int)from->nr_segs); /* GRRRRR */ - if (iocb->ki_left == 0) - return 0; - - appending = file->f_flags & O_APPEND ? 1 : 0; - direct_io = file->f_flags & O_DIRECT ? 1 : 0; + if (!direct_io && nowait) + return -EOPNOTSUPP; - mutex_lock(&inode->i_mutex); + if (count == 0) + return 0; - ocfs2_iocb_clear_sem_locked(iocb); + if (nowait) { + if (!inode_trylock(inode)) + return -EAGAIN; + } else + inode_lock(inode); -relock: - /* to match setattr's i_mutex -> rw_lock ordering */ - if (direct_io) { - have_alloc_sem = 1; - /* communicate with ocfs2_dio_end_io */ - ocfs2_iocb_set_sem_locked(iocb); - } + ocfs2_iocb_init_rw_locked(iocb); /* * Concurrent O_DIRECT writes are allowed with * mount_option "coherency=buffered". + * For append write, we must take rw EX. */ - rw_level = (!direct_io || full_coherency); + rw_level = (!direct_io || full_coherency || append_write); - ret = ocfs2_rw_lock(inode, rw_level); + if (nowait) + ret = ocfs2_try_rw_lock(inode, rw_level); + else + ret = ocfs2_rw_lock(inode, rw_level); if (ret < 0) { - mlog_errno(ret); - goto out_sems; + if (ret != -EAGAIN) + mlog_errno(ret); + goto out_mutex; } /* @@ -2285,112 +2427,48 @@ relock: * other nodes to drop their caches. Buffered I/O * already does this in write_begin(). */ - ret = ocfs2_inode_lock(inode, NULL, 1); + if (nowait) + ret = ocfs2_try_inode_lock(inode, NULL, 1); + else + ret = ocfs2_inode_lock(inode, NULL, 1); if (ret < 0) { - mlog_errno(ret); + if (ret != -EAGAIN) + mlog_errno(ret); goto out; } ocfs2_inode_unlock(inode, 1); } - can_do_direct = direct_io; - ret = ocfs2_prepare_inode_for_write(file, ppos, - iocb->ki_left, appending, - &can_do_direct, &has_refcount); - if (ret < 0) { - mlog_errno(ret); + ret = generic_write_checks(iocb, from); + if (ret <= 0) { + if (ret) + mlog_errno(ret); goto out; } + count = ret; - if (direct_io && !is_sync_kiocb(iocb)) - unaligned_dio = ocfs2_is_io_unaligned(inode, iocb->ki_left, - *ppos); - - /* - * We can't complete the direct I/O as requested, fall back to - * buffered I/O. - */ - if (direct_io && !can_do_direct) { - ocfs2_rw_unlock(inode, rw_level); - - have_alloc_sem = 0; - rw_level = -1; - - direct_io = 0; - goto relock; + ret = ocfs2_prepare_inode_for_write(file, iocb->ki_pos, count, !nowait); + if (ret < 0) { + if (ret != -EAGAIN) + mlog_errno(ret); + goto out; } - if (unaligned_dio) { + if (direct_io && !is_sync_kiocb(iocb) && + ocfs2_is_io_unaligned(inode, count, iocb->ki_pos)) { /* - * Wait on previous unaligned aio to complete before - * proceeding. + * Make it a sync io if it's an unaligned aio. */ - ocfs2_aiodio_wait(inode); - - /* Mark the iocb as needing a decrement in ocfs2_dio_end_io */ - atomic_inc(&OCFS2_I(inode)->ip_unaligned_aio); - ocfs2_iocb_set_unaligned_aio(iocb); + saved_ki_complete = xchg(&iocb->ki_complete, NULL); } - /* - * To later detect whether a journal commit for sync writes is - * necessary, we sample i_size, and cluster count here. - */ - old_size = i_size_read(inode); - old_clusters = OCFS2_I(inode)->ip_clusters; - /* communicate with ocfs2_dio_end_io */ ocfs2_iocb_set_rw_locked(iocb, rw_level); - ret = generic_segment_checks(iov, &nr_segs, &ocount, - VERIFY_READ); - if (ret) - goto out_dio; - - count = ocount; - ret = generic_write_checks(file, ppos, &count, - S_ISBLK(inode->i_mode)); - if (ret) - goto out_dio; - - if (direct_io) { - written = generic_file_direct_write(iocb, iov, &nr_segs, *ppos, - ppos, count, ocount); - if (written < 0) { - ret = written; - goto out_dio; - } - } else { - current->backing_dev_info = file->f_mapping->backing_dev_info; - written = generic_file_buffered_write(iocb, iov, nr_segs, *ppos, - ppos, count, 0); - current->backing_dev_info = NULL; - } - -out_dio: + written = __generic_file_write_iter(iocb, from); /* buffered aio wouldn't have proper lock coverage today */ - BUG_ON(ret == -EIOCBQUEUED && !(file->f_flags & O_DIRECT)); - - if (((file->f_flags & O_DSYNC) && !direct_io) || IS_SYNC(inode) || - ((file->f_flags & O_DIRECT) && !direct_io)) { - ret = filemap_fdatawrite_range(file->f_mapping, pos, - pos + count - 1); - if (ret < 0) - written = ret; - - if (!ret && ((old_size != i_size_read(inode)) || - (old_clusters != OCFS2_I(inode)->ip_clusters) || - has_refcount)) { - ret = jbd2_journal_force_commit(osb->journal->j_journal); - if (ret < 0) - written = ret; - } - - if (!ret) - ret = filemap_fdatawait_range(file->f_mapping, pos, - pos + count - 1); - } + BUG_ON(written == -EIOCBQUEUED && !direct_io); /* * deep in g_f_a_w_n()->ocfs2_direct_IO we pass in a ocfs2_dio_end_io @@ -2401,153 +2479,62 @@ out_dio: * async dio is going to do it in the future or an end_io after an * error has already done it. */ - if ((ret == -EIOCBQUEUED) || (!ocfs2_iocb_is_rw_locked(iocb))) { + if ((written == -EIOCBQUEUED) || (!ocfs2_iocb_is_rw_locked(iocb))) { rw_level = -1; - have_alloc_sem = 0; - unaligned_dio = 0; - } - - if (unaligned_dio) { - ocfs2_iocb_clear_unaligned_aio(iocb); - atomic_dec(&OCFS2_I(inode)->ip_unaligned_aio); - } - -out: - if (rw_level != -1) - ocfs2_rw_unlock(inode, rw_level); - -out_sems: - if (have_alloc_sem) - ocfs2_iocb_clear_sem_locked(iocb); - - mutex_unlock(&inode->i_mutex); - - if (written) - ret = written; - return ret; -} - -static int ocfs2_splice_to_file(struct pipe_inode_info *pipe, - struct file *out, - struct splice_desc *sd) -{ - int ret; - - ret = ocfs2_prepare_inode_for_write(out, &sd->pos, - sd->total_len, 0, NULL, NULL); - if (ret < 0) { - mlog_errno(ret); - return ret; } - return splice_from_pipe_feed(pipe, sd, pipe_to_file); -} - -static ssize_t ocfs2_file_splice_write(struct pipe_inode_info *pipe, - struct file *out, - loff_t *ppos, - size_t len, - unsigned int flags) -{ - int ret; - struct address_space *mapping = out->f_mapping; - struct inode *inode = mapping->host; - struct splice_desc sd = { - .total_len = len, - .flags = flags, - .pos = *ppos, - .u.file = out, - }; - - - trace_ocfs2_file_splice_write(inode, out, out->f_path.dentry, - (unsigned long long)OCFS2_I(inode)->ip_blkno, - out->f_path.dentry->d_name.len, - out->f_path.dentry->d_name.name, len); - - pipe_lock(pipe); - - splice_from_pipe_begin(&sd); - do { - ret = splice_from_pipe_next(pipe, &sd); - if (ret <= 0) - break; + if (unlikely(written <= 0)) + goto out; - mutex_lock_nested(&inode->i_mutex, I_MUTEX_CHILD); - ret = ocfs2_rw_lock(inode, 1); + if (((file->f_flags & O_DSYNC) && !direct_io) || + IS_SYNC(inode)) { + ret = filemap_fdatawrite_range(file->f_mapping, + iocb->ki_pos - written, + iocb->ki_pos - 1); if (ret < 0) - mlog_errno(ret); - else { - ret = ocfs2_splice_to_file(pipe, out, &sd); - ocfs2_rw_unlock(inode, 1); - } - mutex_unlock(&inode->i_mutex); - } while (ret > 0); - splice_from_pipe_end(pipe, &sd); - - pipe_unlock(pipe); - - if (sd.num_spliced) - ret = sd.num_spliced; - - if (ret > 0) { - int err; + written = ret; - err = generic_write_sync(out, *ppos, ret); - if (err) - ret = err; - else - *ppos += ret; + if (!ret) { + ret = jbd2_journal_force_commit(osb->journal->j_journal); + if (ret < 0) + written = ret; + } - balance_dirty_pages_ratelimited(mapping); + if (!ret) + ret = filemap_fdatawait_range(file->f_mapping, + iocb->ki_pos - written, + iocb->ki_pos - 1); } - return ret; -} - -static ssize_t ocfs2_file_splice_read(struct file *in, - loff_t *ppos, - struct pipe_inode_info *pipe, - size_t len, - unsigned int flags) -{ - int ret = 0, lock_level = 0; - struct inode *inode = file_inode(in); - - trace_ocfs2_file_splice_read(inode, in, in->f_path.dentry, - (unsigned long long)OCFS2_I(inode)->ip_blkno, - in->f_path.dentry->d_name.len, - in->f_path.dentry->d_name.name, len); +out: + if (saved_ki_complete) + xchg(&iocb->ki_complete, saved_ki_complete); - /* - * See the comment in ocfs2_file_aio_read() - */ - ret = ocfs2_inode_lock_atime(inode, in->f_path.mnt, &lock_level); - if (ret < 0) { - mlog_errno(ret); - goto bail; - } - ocfs2_inode_unlock(inode, lock_level); + if (rw_level != -1) + ocfs2_rw_unlock(inode, rw_level); - ret = generic_file_splice_read(in, ppos, pipe, len, flags); +out_mutex: + inode_unlock(inode); -bail: + if (written) + ret = written; return ret; } -static ssize_t ocfs2_file_aio_read(struct kiocb *iocb, - const struct iovec *iov, - unsigned long nr_segs, - loff_t pos) +static ssize_t ocfs2_file_read_iter(struct kiocb *iocb, + struct iov_iter *to) { - int ret = 0, rw_level = -1, have_alloc_sem = 0, lock_level = 0; + int ret = 0, rw_level = -1, lock_level = 0; struct file *filp = iocb->ki_filp; struct inode *inode = file_inode(filp); + int direct_io = iocb->ki_flags & IOCB_DIRECT ? 1 : 0; + int nowait = iocb->ki_flags & IOCB_NOWAIT ? 1 : 0; - trace_ocfs2_file_aio_read(inode, filp, filp->f_path.dentry, + trace_ocfs2_file_read_iter(inode, filp, filp->f_path.dentry, (unsigned long long)OCFS2_I(inode)->ip_blkno, filp->f_path.dentry->d_name.len, - filp->f_path.dentry->d_name.name, nr_segs); + filp->f_path.dentry->d_name.name, + to->nr_segs); /* GRRRRR */ if (!inode) { @@ -2556,19 +2543,24 @@ static ssize_t ocfs2_file_aio_read(struct kiocb *iocb, goto bail; } - ocfs2_iocb_clear_sem_locked(iocb); + if (!direct_io && nowait) + return -EOPNOTSUPP; + + ocfs2_iocb_init_rw_locked(iocb); /* - * buffered reads protect themselves in ->readpage(). O_DIRECT reads + * buffered reads protect themselves in ->read_folio(). O_DIRECT reads * need locks to protect pending reads from racing with truncate. */ - if (filp->f_flags & O_DIRECT) { - have_alloc_sem = 1; - ocfs2_iocb_set_sem_locked(iocb); + if (direct_io) { + if (nowait) + ret = ocfs2_try_rw_lock(inode, 0); + else + ret = ocfs2_rw_lock(inode, 0); - ret = ocfs2_rw_lock(inode, 0); if (ret < 0) { - mlog_errno(ret); + if (ret != -EAGAIN) + mlog_errno(ret); goto bail; } rw_level = 0; @@ -2583,50 +2575,94 @@ static ssize_t ocfs2_file_aio_read(struct kiocb *iocb, * * Take and drop the meta data lock to update inode fields * like i_size. This allows the checks down below - * generic_file_aio_read() a chance of actually working. + * copy_splice_read() a chance of actually working. */ - ret = ocfs2_inode_lock_atime(inode, filp->f_path.mnt, &lock_level); + ret = ocfs2_inode_lock_atime(inode, filp->f_path.mnt, &lock_level, + !nowait); if (ret < 0) { - mlog_errno(ret); + if (ret != -EAGAIN) + mlog_errno(ret); goto bail; } ocfs2_inode_unlock(inode, lock_level); - ret = generic_file_aio_read(iocb, iov, nr_segs, iocb->ki_pos); - trace_generic_file_aio_read_ret(ret); + ret = generic_file_read_iter(iocb, to); + trace_generic_file_read_iter_ret(ret); /* buffered aio wouldn't have proper lock coverage today */ - BUG_ON(ret == -EIOCBQUEUED && !(filp->f_flags & O_DIRECT)); + BUG_ON(ret == -EIOCBQUEUED && !direct_io); - /* see ocfs2_file_aio_write */ + /* see ocfs2_file_write_iter */ if (ret == -EIOCBQUEUED || !ocfs2_iocb_is_rw_locked(iocb)) { rw_level = -1; - have_alloc_sem = 0; } bail: - if (have_alloc_sem) - ocfs2_iocb_clear_sem_locked(iocb); - if (rw_level != -1) ocfs2_rw_unlock(inode, rw_level); return ret; } +static ssize_t ocfs2_file_splice_read(struct file *in, loff_t *ppos, + struct pipe_inode_info *pipe, + size_t len, unsigned int flags) +{ + struct inode *inode = file_inode(in); + ssize_t ret = 0; + int lock_level = 0; + + trace_ocfs2_file_splice_read(inode, in, in->f_path.dentry, + (unsigned long long)OCFS2_I(inode)->ip_blkno, + in->f_path.dentry->d_name.len, + in->f_path.dentry->d_name.name, + flags); + + /* + * We're fine letting folks race truncates and extending writes with + * read across the cluster, just like they can locally. Hence no + * rw_lock during read. + * + * Take and drop the meta data lock to update inode fields like i_size. + * This allows the checks down below filemap_splice_read() a chance of + * actually working. + */ + ret = ocfs2_inode_lock_atime(inode, in->f_path.mnt, &lock_level, 1); + if (ret < 0) { + if (ret != -EAGAIN) + mlog_errno(ret); + goto bail; + } + ocfs2_inode_unlock(inode, lock_level); + + ret = filemap_splice_read(in, ppos, pipe, len, flags); + trace_filemap_splice_read_ret(ret); +bail: + return ret; +} + /* Refer generic_file_llseek_unlocked() */ static loff_t ocfs2_file_llseek(struct file *file, loff_t offset, int whence) { struct inode *inode = file->f_mapping->host; int ret = 0; - mutex_lock(&inode->i_mutex); + inode_lock(inode); switch (whence) { case SEEK_SET: break; case SEEK_END: - offset += inode->i_size; + /* SEEK_END requires the OCFS2 inode lock for the file + * because it references the file's size. + */ + ret = ocfs2_inode_lock(inode, NULL, 0); + if (ret < 0) { + mlog_errno(ret); + goto out; + } + offset += i_size_read(inode); + ocfs2_inode_unlock(inode, 0); break; case SEEK_CUR: if (offset == 0) { @@ -2649,29 +2685,113 @@ static loff_t ocfs2_file_llseek(struct file *file, loff_t offset, int whence) offset = vfs_setpos(file, offset, inode->i_sb->s_maxbytes); out: - mutex_unlock(&inode->i_mutex); + inode_unlock(inode); if (ret) return ret; return offset; } +static loff_t ocfs2_remap_file_range(struct file *file_in, loff_t pos_in, + struct file *file_out, loff_t pos_out, + loff_t len, unsigned int remap_flags) +{ + struct inode *inode_in = file_inode(file_in); + struct inode *inode_out = file_inode(file_out); + struct ocfs2_super *osb = OCFS2_SB(inode_in->i_sb); + struct buffer_head *in_bh = NULL, *out_bh = NULL; + bool same_inode = (inode_in == inode_out); + loff_t remapped = 0; + ssize_t ret; + + if (remap_flags & ~(REMAP_FILE_DEDUP | REMAP_FILE_ADVISORY)) + return -EINVAL; + if (!ocfs2_refcount_tree(osb)) + return -EOPNOTSUPP; + if (ocfs2_is_hard_readonly(osb) || ocfs2_is_soft_readonly(osb)) + return -EROFS; + + /* Lock both files against IO */ + ret = ocfs2_reflink_inodes_lock(inode_in, &in_bh, inode_out, &out_bh); + if (ret) + return ret; + + /* Check file eligibility and prepare for block sharing. */ + ret = -EINVAL; + if ((OCFS2_I(inode_in)->ip_flags & OCFS2_INODE_SYSTEM_FILE) || + (OCFS2_I(inode_out)->ip_flags & OCFS2_INODE_SYSTEM_FILE)) + goto out_unlock; + + ret = generic_remap_file_range_prep(file_in, pos_in, file_out, pos_out, + &len, remap_flags); + if (ret < 0 || len == 0) + goto out_unlock; + + /* Lock out changes to the allocation maps and remap. */ + down_write(&OCFS2_I(inode_in)->ip_alloc_sem); + if (!same_inode) + down_write_nested(&OCFS2_I(inode_out)->ip_alloc_sem, + SINGLE_DEPTH_NESTING); + + /* Zap any page cache for the destination file's range. */ + truncate_inode_pages_range(&inode_out->i_data, + round_down(pos_out, PAGE_SIZE), + round_up(pos_out + len, PAGE_SIZE) - 1); + + remapped = ocfs2_reflink_remap_blocks(inode_in, in_bh, pos_in, + inode_out, out_bh, pos_out, len); + up_write(&OCFS2_I(inode_in)->ip_alloc_sem); + if (!same_inode) + up_write(&OCFS2_I(inode_out)->ip_alloc_sem); + if (remapped < 0) { + ret = remapped; + mlog_errno(ret); + goto out_unlock; + } + + /* + * Empty the extent map so that we may get the right extent + * record from the disk. + */ + ocfs2_extent_map_trunc(inode_in, 0); + ocfs2_extent_map_trunc(inode_out, 0); + + ret = ocfs2_reflink_update_dest(inode_out, out_bh, pos_out + len); + if (ret) { + mlog_errno(ret); + goto out_unlock; + } + +out_unlock: + ocfs2_reflink_inodes_unlock(inode_in, in_bh, inode_out, out_bh); + return remapped > 0 ? remapped : ret; +} + +static loff_t ocfs2_dir_llseek(struct file *file, loff_t offset, int whence) +{ + struct ocfs2_file_private *fp = file->private_data; + + return generic_llseek_cookie(file, offset, whence, &fp->cookie); +} + const struct inode_operations ocfs2_file_iops = { .setattr = ocfs2_setattr, .getattr = ocfs2_getattr, .permission = ocfs2_permission, - .setxattr = generic_setxattr, - .getxattr = generic_getxattr, .listxattr = ocfs2_listxattr, - .removexattr = generic_removexattr, .fiemap = ocfs2_fiemap, - .get_acl = ocfs2_iop_get_acl, + .get_inode_acl = ocfs2_iop_get_acl, + .set_acl = ocfs2_iop_set_acl, + .fileattr_get = ocfs2_fileattr_get, + .fileattr_set = ocfs2_fileattr_set, }; const struct inode_operations ocfs2_special_file_iops = { .setattr = ocfs2_setattr, .getattr = ocfs2_getattr, + .listxattr = ocfs2_listxattr, .permission = ocfs2_permission, - .get_acl = ocfs2_iop_get_acl, + .get_inode_acl = ocfs2_iop_get_acl, + .set_acl = ocfs2_iop_set_acl, }; /* @@ -2680,14 +2800,12 @@ const struct inode_operations ocfs2_special_file_iops = { */ const struct file_operations ocfs2_fops = { .llseek = ocfs2_file_llseek, - .read = do_sync_read, - .write = do_sync_write, - .mmap = ocfs2_mmap, + .mmap_prepare = ocfs2_mmap_prepare, .fsync = ocfs2_sync_file, .release = ocfs2_file_release, .open = ocfs2_file_open, - .aio_read = ocfs2_file_aio_read, - .aio_write = ocfs2_file_aio_write, + .read_iter = ocfs2_file_read_iter, + .write_iter = ocfs2_file_write_iter, .unlocked_ioctl = ocfs2_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = ocfs2_compat_ioctl, @@ -2695,14 +2813,17 @@ const struct file_operations ocfs2_fops = { .lock = ocfs2_lock, .flock = ocfs2_flock, .splice_read = ocfs2_file_splice_read, - .splice_write = ocfs2_file_splice_write, + .splice_write = iter_file_splice_write, .fallocate = ocfs2_fallocate, + .remap_file_range = ocfs2_remap_file_range, + .fop_flags = FOP_ASYNC_LOCK, }; +WRAP_DIR_ITER(ocfs2_readdir) // FIXME! const struct file_operations ocfs2_dops = { - .llseek = generic_file_llseek, + .llseek = ocfs2_dir_llseek, .read = generic_read_dir, - .iterate = ocfs2_readdir, + .iterate_shared = shared_ocfs2_readdir, .fsync = ocfs2_sync_file, .release = ocfs2_dir_release, .open = ocfs2_dir_open, @@ -2712,6 +2833,7 @@ const struct file_operations ocfs2_dops = { #endif .lock = ocfs2_lock, .flock = ocfs2_flock, + .fop_flags = FOP_ASYNC_LOCK, }; /* @@ -2728,28 +2850,27 @@ const struct file_operations ocfs2_dops = { */ const struct file_operations ocfs2_fops_no_plocks = { .llseek = ocfs2_file_llseek, - .read = do_sync_read, - .write = do_sync_write, - .mmap = ocfs2_mmap, + .mmap_prepare = ocfs2_mmap_prepare, .fsync = ocfs2_sync_file, .release = ocfs2_file_release, .open = ocfs2_file_open, - .aio_read = ocfs2_file_aio_read, - .aio_write = ocfs2_file_aio_write, + .read_iter = ocfs2_file_read_iter, + .write_iter = ocfs2_file_write_iter, .unlocked_ioctl = ocfs2_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = ocfs2_compat_ioctl, #endif .flock = ocfs2_flock, - .splice_read = ocfs2_file_splice_read, - .splice_write = ocfs2_file_splice_write, + .splice_read = filemap_splice_read, + .splice_write = iter_file_splice_write, .fallocate = ocfs2_fallocate, + .remap_file_range = ocfs2_remap_file_range, }; const struct file_operations ocfs2_dops_no_plocks = { - .llseek = generic_file_llseek, + .llseek = ocfs2_dir_llseek, .read = generic_read_dir, - .iterate = ocfs2_readdir, + .iterate_shared = shared_ocfs2_readdir, .fsync = ocfs2_sync_file, .release = ocfs2_dir_release, .open = ocfs2_dir_open, |