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2014-05-13Merge tag 'locks-v3.15-4' of git://git.samba.org/jlayton/linuxLinus Torvalds
Pull file locking fix from Jeff Layton: "Fix for regression in handling of F_GETLK commands" * tag 'locks-v3.15-4' of git://git.samba.org/jlayton/linux: locks: only validate the lock vs. f_mode in F_SETLK codepaths
2014-05-12ext4: use EXT_MAX_BLOCKS in ext4_es_can_be_merged()Lukas Czerner
In ext4_es_can_be_merged() when checking whether we can merge two extents we should use EXT_MAX_BLOCKS instead of defining it manually. Also if it is really the case we should notify userspace because clearly there is a bug in extent status tree implementation since this should never happen. Signed-off-by: Lukas Czerner <lczerner@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>
2014-05-13Merge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds
Pull cifs fix from Steve French: "Small cifs fix for metadata caching" * 'for-linus' of git://git.samba.org/sfrench/cifs-2.6: cifs: fix actimeo=0 corner case when cifs_i->time == jiffies
2014-05-12ext4: add missing BUFFER_TRACE before ext4_journal_get_write_accessliang xie
Make them more consistently Signed-off-by: xieliang <xieliang@xiaomi.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2014-05-12ext4: remove unnecessary double parenthesesLukas Czerner
Signed-off-by: Lukas Czerner <lczerner@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2014-05-12ext4: do not destroy ext4_groupinfo_caches if ext4_mb_init() failsAndrey Tsyvarev
Caches from 'ext4_groupinfo_caches' may be in use by other mounts, which have already existed. So, it is incorrect to destroy them when newly requested mount fails. Found by Linux File System Verification project (linuxtesting.org). Signed-off-by: Andrey Tsyvarev <tsyvarev@ispras.ru> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Reviewed-by: Lukas Czerner <lczerner@redhat.com>
2014-05-12ext4: make local functions staticStephen Hemminger
I have been running make namespacecheck to look for unneeded globals, and found these in ext4. Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2014-05-12ext4: fix block bitmap validation when bigalloc, ^flex_bgDarrick J. Wong
On a bigalloc,^flex_bg filesystem, the ext4_valid_block_bitmap function fails to convert from blocks to clusters when spot-checking the validity of the bitmap block that we've just read from disk. This causes ext4 to think that the bitmap is garbage, which results in the block group being taken offline when it's not necessary. Add in the necessary EXT4_B2C() calls to perform the conversions. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2014-05-12ext4: fix block bitmap initialization under sparse_super2Darrick J. Wong
The ext4_bg_has_super() function doesn't know about the new rules for where backup superblocks go on a sparse_super2 filesystem. Therefore, block bitmap initialization doesn't know that it shouldn't reserve space for backups in groups that are never going to contain backups. The result of this is e2fsck complaining about the block bitmap being incorrect (fortunately not in a way that results in cross-linked files), so fix the whole thing. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2014-05-12ext4: find the group descriptors on a 1k-block bigalloc,meta_bg filesystemDarrick J. Wong
On a filesystem with a 1k block size, the group descriptors live in block 2, not block 1. If the filesystem has bigalloc,meta_bg set, however, the calculation of the group descriptor table location does not take this into account and returns the wrong block number. Fix the calculation to return the correct value for this case. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2014-05-12ext4: avoid unneeded lookup when xattr name is invalidZhang Zhen
In ext4_xattr_set_handle() we have checked the xattr name's length. So we should also check it in ext4_xattr_get() to avoid unneeded lookup caused by invalid name. Signed-off-by: Zhang Zhen <zhenzhang.zhang@huawei.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2014-05-12ext4: fix data integrity sync in ordered modeNamjae Jeon
When we perform a data integrity sync we tag all the dirty pages with PAGECACHE_TAG_TOWRITE at start of ext4_da_writepages. Later we check for this tag in write_cache_pages_da and creates a struct mpage_da_data containing contiguously indexed pages tagged with this tag and sync these pages with a call to mpage_da_map_and_submit. This process is done in while loop until all the PAGECACHE_TAG_TOWRITE pages are synced. We also do journal start and stop in each iteration. journal_stop could initiate journal commit which would call ext4_writepage which in turn will call ext4_bio_write_page even for delayed OR unwritten buffers. When ext4_bio_write_page is called for such buffers, even though it does not sync them but it clears the PAGECACHE_TAG_TOWRITE of the corresponding page and hence these pages are also not synced by the currently running data integrity sync. We will end up with dirty pages although sync is completed. This could cause a potential data loss when the sync call is followed by a truncate_pagecache call, which is exactly the case in collapse_range. (It will cause generic/127 failure in xfstests) To avoid this issue, we can use set_page_writeback_keepwrite instead of set_page_writeback, which doesn't clear TOWRITE tag. Cc: stable@vger.kernel.org Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Reviewed-by: Jan Kara <jack@suse.cz>
2014-05-11Merge branch 'for-3.15' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
Pull nfsd fixes from Bruce Fields. * 'for-3.15' of git://linux-nfs.org/~bfields/linux: NFSD: Call ->set_acl with a NULL ACL structure if no entries NFSd: call rpc_destroy_wait_queue() from free_client() NFSd: Move default initialisers from create_client() to alloc_client()
2014-05-09locks: only validate the lock vs. f_mode in F_SETLK codepathsJeff Layton
v2: replace missing break in switch statement (as pointed out by Dave Jones) commit bce7560d4946 (locks: consolidate checks for compatible filp->f_mode values in setlk handlers) introduced a regression in the F_GETLK handler. flock64_to_posix_lock is a shared codepath between F_GETLK and F_SETLK, but the f_mode checks should only be applicable to the F_SETLK codepaths according to POSIX. Instead of just reverting the patch, add a new function to do this checking and have the F_SETLK handlers call it. Cc: Dave Jones <davej@redhat.com> Reported-and-Tested-by: Reuben Farrelly <reuben@reub.net> Signed-off-by: Jeff Layton <jlayton@poochiereds.net>
2014-05-08Merge tag 'xfs-for-linus-3.15-rc5' of git://oss.sgi.com/xfs/xfsLinus Torvalds
Pull xfs fixes from Dave Chinner: "The main fix is adding support for default ACLs on O_TMPFILE opened inodes to bring XFS into line with other filesystems. Metadata CRCs are now also considered well enough tested to be fully supported, so we're removing the shouty warnings issued at mount time for filesystems with that format. And there's transaction block reservation overrun fix. Summary: - fix a remote attribute size calculation bug that leads to a transaction overrun - add default ACLs to O_TMPFILE files - Remove the EXPERIMENTAL tag from filesystems with metadata CRC support" * tag 'xfs-for-linus-3.15-rc5' of git://oss.sgi.com/xfs/xfs: xfs: remote attribute overwrite causes transaction overrun xfs: initialize default acls for ->tmpfile() xfs: fully support v5 format filesystems
2014-05-08NFSD: Get rid of empty function nfs4_state_initKinglong Mee
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-05-08NFSD: Use simple_read_from_buffer for coping data to userspaceKinglong Mee
Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-05-08Merge 3.15 bugfix for 3.16J. Bruce Fields
2014-05-08nfsd: clean up fh_auth usageChristoph Hellwig
Use fh_fsid when reffering to the fsid part of the filehandle. The variable length auth field envisioned in nfsfh wasn't ever implemented. Also clean up some lose ends around this and document the file handle format better. Btw, why do we even export nfsfh.h to userspace? The file handle very much is kernel private, and nothing in nfs-utils include the header either. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-05-08NFSD: cleanup unneeded including linux/export.hKinglong Mee
commit 4ac7249ea5a0ceef9f8269f63f33cc873c3fac61 have remove all EXPORT_SYMBOL, linux/export.h is not needed, just clean it. Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-05-08NFSD: Call ->set_acl with a NULL ACL structure if no entriesKinglong Mee
After setting ACL for directory, I got two problems that caused by the cached zero-length default posix acl. This patch make sure nfsd4_set_nfs4_acl calls ->set_acl with a NULL ACL structure if there are no entries. Thanks for Christoph Hellwig's advice. First problem: ............ hang ........... Second problem: [ 1610.167668] ------------[ cut here ]------------ [ 1610.168320] kernel BUG at /root/nfs/linux/fs/nfsd/nfs4acl.c:239! [ 1610.168320] invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC [ 1610.168320] Modules linked in: nfsv4(OE) nfs(OE) nfsd(OE) rpcsec_gss_krb5 fscache ip6t_rpfilter ip6t_REJECT cfg80211 xt_conntrack rfkill ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw auth_rpcgss nfs_acl snd_intel8x0 ppdev lockd snd_ac97_codec ac97_bus snd_pcm snd_timer e1000 pcspkr parport_pc snd parport serio_raw joydev i2c_piix4 sunrpc(OE) microcode soundcore i2c_core ata_generic pata_acpi [last unloaded: nfsd] [ 1610.168320] CPU: 0 PID: 27397 Comm: nfsd Tainted: G OE 3.15.0-rc1+ #15 [ 1610.168320] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [ 1610.168320] task: ffff88005ab653d0 ti: ffff88005a944000 task.ti: ffff88005a944000 [ 1610.168320] RIP: 0010:[<ffffffffa034d5ed>] [<ffffffffa034d5ed>] _posix_to_nfsv4_one+0x3cd/0x3d0 [nfsd] [ 1610.168320] RSP: 0018:ffff88005a945b00 EFLAGS: 00010293 [ 1610.168320] RAX: 0000000000000001 RBX: ffff88006700bac0 RCX: 0000000000000000 [ 1610.168320] RDX: 0000000000000000 RSI: ffff880067c83f00 RDI: ffff880068233300 [ 1610.168320] RBP: ffff88005a945b48 R08: ffffffff81c64830 R09: 0000000000000000 [ 1610.168320] R10: ffff88004ea85be0 R11: 000000000000f475 R12: ffff880068233300 [ 1610.168320] R13: 0000000000000003 R14: 0000000000000002 R15: ffff880068233300 [ 1610.168320] FS: 0000000000000000(0000) GS:ffff880077800000(0000) knlGS:0000000000000000 [ 1610.168320] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 1610.168320] CR2: 00007f5bcbd3b0b9 CR3: 0000000001c0f000 CR4: 00000000000006f0 [ 1610.168320] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1610.168320] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1610.168320] Stack: [ 1610.168320] ffffffff00000000 0000000b67c83500 000000076700bac0 0000000000000000 [ 1610.168320] ffff88006700bac0 ffff880068233300 ffff88005a945c08 0000000000000002 [ 1610.168320] 0000000000000000 ffff88005a945b88 ffffffffa034e2d5 000000065a945b68 [ 1610.168320] Call Trace: [ 1610.168320] [<ffffffffa034e2d5>] nfsd4_get_nfs4_acl+0x95/0x150 [nfsd] [ 1610.168320] [<ffffffffa03400d6>] nfsd4_encode_fattr+0x646/0x1e70 [nfsd] [ 1610.168320] [<ffffffff816a6e6e>] ? kmemleak_alloc+0x4e/0xb0 [ 1610.168320] [<ffffffffa0327962>] ? nfsd_setuser_and_check_port+0x52/0x80 [nfsd] [ 1610.168320] [<ffffffff812cd4bb>] ? selinux_cred_prepare+0x1b/0x30 [ 1610.168320] [<ffffffffa0341caa>] nfsd4_encode_getattr+0x5a/0x60 [nfsd] [ 1610.168320] [<ffffffffa0341e07>] nfsd4_encode_operation+0x67/0x110 [nfsd] [ 1610.168320] [<ffffffffa033844d>] nfsd4_proc_compound+0x21d/0x810 [nfsd] [ 1610.168320] [<ffffffffa0324d9b>] nfsd_dispatch+0xbb/0x200 [nfsd] [ 1610.168320] [<ffffffffa00850cd>] svc_process_common+0x46d/0x6d0 [sunrpc] [ 1610.168320] [<ffffffffa0085433>] svc_process+0x103/0x170 [sunrpc] [ 1610.168320] [<ffffffffa032472f>] nfsd+0xbf/0x130 [nfsd] [ 1610.168320] [<ffffffffa0324670>] ? nfsd_destroy+0x80/0x80 [nfsd] [ 1610.168320] [<ffffffff810a5202>] kthread+0xd2/0xf0 [ 1610.168320] [<ffffffff810a5130>] ? insert_kthread_work+0x40/0x40 [ 1610.168320] [<ffffffff816c1ebc>] ret_from_fork+0x7c/0xb0 [ 1610.168320] [<ffffffff810a5130>] ? insert_kthread_work+0x40/0x40 [ 1610.168320] Code: 78 02 e9 e7 fc ff ff 31 c0 31 d2 31 c9 66 89 45 ce 41 8b 04 24 66 89 55 d0 66 89 4d d2 48 8d 04 80 49 8d 5c 84 04 e9 37 fd ff ff <0f> 0b 90 0f 1f 44 00 00 55 8b 56 08 c7 07 00 00 00 00 8b 46 0c [ 1610.168320] RIP [<ffffffffa034d5ed>] _posix_to_nfsv4_one+0x3cd/0x3d0 [nfsd] [ 1610.168320] RSP <ffff88005a945b00> [ 1610.257313] ---[ end trace 838254e3e352285b ]--- Signed-off-by: Kinglong Mee <kinglongmee@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-05-08f2fs: use inode_init_owner() to simplify codesChao Yu
This patch uses exported inode_init_owner() to simplify codes in f2fs_new_inode(). Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2014-05-08f2fs: avoid to use slab memory in f2fs_issue_flush for efficiencyChao Yu
If we use slab memory in f2fs_issue_flush(), we will face memory pressure and latency time caused by racing of kmem_cache_{alloc,free}. Let's alloc memory in stack instead of slab. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2014-05-07reiserfs: balance_leaf refactor, format balance_leaf_paste_rightJeff Mahoney
Break up balance_leaf_paste_right into: balance_leaf_paste_right_shift balance_leaf_paste_right_shift_dirent balance_leaf_paste_right_whole and keep balance_leaf_paste_right as a handler to select which is appropriate. Also reformat to adhere to CodingStyle. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jan Kara <jack@suse.cz>
2014-05-07reiserfs: balance_leaf refactor, format balance_leaf_insert_rightJeff Mahoney
Reformat balance_leaf_insert_right to adhere to CodingStyle. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jan Kara <jack@suse.cz>
2014-05-07reiserfs: balance_leaf refactor, format balance_leaf_paste_leftJeff Mahoney
Break up balance_leaf_paste_left into: balance_leaf_paste_left_shift balance_leaf_paste_left_shift_dirent balance_leaf_paste_left_whole and keep balance_leaf_paste_left as a handler to select which is appropriate. Also reformat to adhere to CodingStyle. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jan Kara <jack@suse.cz>
2014-05-07reiserfs: balance_leaf refactor, format balance_leaf_insert_leftJeff Mahoney
Reformat balance_leaf_insert_left to adhere to CodingStyle. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jan Kara <jack@suse.cz>
2014-05-07reiserfs: balance_leaf refactor, pull out balance_leaf{left, right, ↵Jeff Mahoney
new_nodes, finish_node} Break out the code that splits paste/insert for each phase. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jan Kara <jack@suse.cz>
2014-05-07reiserfs: balance_leaf refactor, pull out balance_leaf_finish_node_pasteJeff Mahoney
This patch factors out a new balance_leaf_finish_node_paste from the code in balance_leaf responsible for pasting new content into existing items held in S[0]. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jan Kara <jack@suse.cz>
2014-05-07reiserfs: balance_leaf refactor pull out balance_leaf_finish_node_insertJeff Mahoney
This patch factors out a new balance_leaf_finish_node_insert from the code in balance_leaf responsible for inserting new items into S[0] It has not been reformatted yet. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jan Kara <jack@suse.cz>
2014-05-07reiserfs: balance_leaf refactor, pull out balance_leaf_new_nodes_pasteJeff Mahoney
This patch factors out a new balance_leaf_new_nodes_insert from the code in balance_leaf responsible for pasting new content into existing items that may have been shifted into new nodes in the tree. It has not been reformatted yet. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jan Kara <jack@suse.cz>
2014-05-07reiserfs: balance_leaf refactor, pull out balance_leaf_new_nodes_insertJeff Mahoney
This patch factors out a new balance_leaf_new_nodes_insert from the code in balance_leaf responsible for inserting new items into new nodes in the tree. It has not been reformatted yet. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jan Kara <jack@suse.cz>
2014-05-07reiserfs: balance_leaf refactor, pull out balance_leaf_paste_rightJeff Mahoney
This patch factors out a new balance_leaf_paste_right from the code in balance_leaf responsible for pasting new contents into an existing item located in the node to the right of S[0] in the tree. It has not been reformatted yet. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jan Kara <jack@suse.cz>
2014-05-07reiserfs: balance_leaf refactor, pull out balance_leaf_insert_rightJeff Mahoney
This patch factors out a new balance_leaf_insert_right from the code in balance_leaf responsible for inserting new items into the node to the right of S[0] in the tree. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jan Kara <jack@suse.cz>
2014-05-07reiserfs: balance_leaf refactor, pull out balance_leaf_paste_leftJeff Mahoney
This patch factors out a new balance_leaf_paste_left from the code in balance_leaf responsible for pasting new content into an existing item located in the node to the left of S[0] in the tree. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jan Kara <jack@suse.cz>
2014-05-07reiserfs: balance_leaf refactor, pull out balance_leaf_insert_leftJeff Mahoney
This patch factors out a new balance_leaf_insert_left from the code in balance_leaf responsible for inserting new items into the node to the left of S[0] in the tree. It is not yet formatted correctly. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jan Kara <jack@suse.cz>
2014-05-07reiserfs: balance_leaf refactor, move state variables into tree_balanceJeff Mahoney
This patch pushes the rest of the state variables in balance_leaf into the tree_balance structure so we can use them when we split balance_leaf into separate functions. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jan Kara <jack@suse.cz>
2014-05-07reiserfs: balance_leaf refactor, reformat balance_leaf commentsJeff Mahoney
The comments in balance_leaf are as bad as the code. This patch shifts them around to fit in 80 columns and be easier to read. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jan Kara <jack@suse.cz>
2014-05-07reiserfs: cleanup, make hash detection sanerJeff Mahoney
The hash detection code uses long ugly macros multiple times to get the same value. This patch cleans it up to be easier to read. [JK: Fixed up path leak in find_hash_out()] Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: Jan Kara <jack@suse.cz>
2014-05-07NFSd: Clean up nfs4_preprocess_stateid_opTrond Myklebust
Move the state locking and file descriptor reference out from the callers and into nfs4_preprocess_stateid_op() itself. Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-05-07Merge branch 'sched/urgent' into sched/core, to avoid conflictsIngo Molnar
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-05-07f2fs: add a tracepoint for f2fs_read_data_pageChao Yu
This patch adds a tracepoint for f2fs_read_data_page to trace when page is readed by user. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2014-05-07f2fs: add a tracepoint for f2fs_write_{meta,node,data}_pagesChao Yu
This patch adds a tracepoint for f2fs_write_{meta,node,data}_pages to trace when pages are fsyncing/flushing. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2014-05-07f2fs: add a tracepoint for f2fs_write_{meta,node,data}_pageChao Yu
This patch adds a tracepoint for f2fs_write_{meta,node,data}_page to trace when page is writting out. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2014-05-07f2fs: add a tracepoint for f2fs_write_endChao Yu
This patch adds a tracepoint for f2fs_write_end to trace write op of user. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2014-05-07f2fs: add a tracepoint for f2fs_write_beginChao Yu
This patch adds a tracepoint for f2fs_write_begin to trace write op of user. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2014-05-07f2fs: fix checkpatch warningZhang Zhen
fix the following checkpatch warning: WARNING: do {} while (0) macros should not be semicolon terminated Signed-off-by: Zhang Zhen <zhenzhang.zhang@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2014-05-07f2fs: deactivate inode page if the inode is evictedJaegeuk Kim
If the inode page is clean during its inode eviction, it'd better drop the page to reduce further memory pressure. Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2014-05-07f2fs: decrease the lock granularity during write_beginJaegeuk Kim
This patch reduces the lock granularity during write_begin. When the system is under memory pressure, it would be better to reduce the locking time for the data pages. Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
2014-05-07f2fs: no need to wait on page writebck to meta pagesJaegeuk Kim
This patch removes grab_cache_page_write_begin for meta pages. Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
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