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authorTakashi Iwai <tiwai@suse.de>2024-11-18 14:34:54 +0100
committerTakashi Iwai <tiwai@suse.de>2024-11-18 14:34:54 +0100
commit1a7585c3a4504705a97c1560ff67d589b693115d (patch)
tree8938dbb5a270dddae76e2075c2a42e31008c4714 /fs/9p/vfs_inode.c
parent9b4662d0df9f4433f1828904ba5e8733c1ad5158 (diff)
parent82ff5abc2edcfba0c0f1a1be807795e2876f46e9 (diff)
Merge tag 'asoc-v6.13' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next
ASoC: Updates for v6.13 This release was mainly about new drivers, there's a very large batch of new drivers and devices including quite a few from newer vendors which is great to see. Other than the new drivers and the usual routine fixes and enhancements the bulk of the work has been Morimoto-san's continuing work on simplifiying APIs, plus a few other bits: - More API simplifications from Morimoto-san. - Renaming of the sh directory to Renesas to reflect the focus on other architectures. - Factoring out of some of the common code for Realtek devices. - Support for Allwinner H616, AMD ACP 6.3 systems, AWInic AW88081, Cirrus Logic CS32L84, Everest ES8328, Iron Devices SMA1307, Longsoon I2S, NeoFidelity NTP8918 and NTP8835, Philips UDA1342, Qualcomm SM8750, RealTek RT721, and ST Microelectronics STM32MP25.
Diffstat (limited to 'fs/9p/vfs_inode.c')
-rw-r--r--fs/9p/vfs_inode.c130
1 files changed, 82 insertions, 48 deletions
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index effb3aa1f3ed..3e68521f4e2f 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -256,12 +256,9 @@ void v9fs_set_netfs_context(struct inode *inode)
}
int v9fs_init_inode(struct v9fs_session_info *v9ses,
- struct inode *inode, struct p9_qid *qid, umode_t mode, dev_t rdev)
+ struct inode *inode, umode_t mode, dev_t rdev)
{
int err = 0;
- struct v9fs_inode *v9inode = V9FS_I(inode);
-
- memcpy(&v9inode->qid, qid, sizeof(struct p9_qid));
inode_init_owner(&nop_mnt_idmap, inode, NULL, mode);
inode->i_blocks = 0;
@@ -295,7 +292,6 @@ int v9fs_init_inode(struct v9fs_session_info *v9ses,
inode->i_op = &v9fs_file_inode_operations;
inode->i_fop = &v9fs_file_operations;
}
- mapping_set_large_folios(inode->i_mapping);
break;
case S_IFLNK:
@@ -366,59 +362,105 @@ void v9fs_evict_inode(struct inode *inode)
clear_inode(inode);
}
-struct inode *
-v9fs_fid_iget(struct super_block *sb, struct p9_fid *fid, bool new)
+static int v9fs_test_inode(struct inode *inode, void *data)
+{
+ int umode;
+ dev_t rdev;
+ struct v9fs_inode *v9inode = V9FS_I(inode);
+ struct p9_wstat *st = (struct p9_wstat *)data;
+ struct v9fs_session_info *v9ses = v9fs_inode2v9ses(inode);
+
+ umode = p9mode2unixmode(v9ses, st, &rdev);
+ /* don't match inode of different type */
+ if (inode_wrong_type(inode, umode))
+ return 0;
+
+ /* compare qid details */
+ if (memcmp(&v9inode->qid.version,
+ &st->qid.version, sizeof(v9inode->qid.version)))
+ return 0;
+
+ if (v9inode->qid.type != st->qid.type)
+ return 0;
+
+ if (v9inode->qid.path != st->qid.path)
+ return 0;
+ return 1;
+}
+
+static int v9fs_test_new_inode(struct inode *inode, void *data)
+{
+ return 0;
+}
+
+static int v9fs_set_inode(struct inode *inode, void *data)
+{
+ struct v9fs_inode *v9inode = V9FS_I(inode);
+ struct p9_wstat *st = (struct p9_wstat *)data;
+
+ memcpy(&v9inode->qid, &st->qid, sizeof(st->qid));
+ return 0;
+}
+
+static struct inode *v9fs_qid_iget(struct super_block *sb,
+ struct p9_qid *qid,
+ struct p9_wstat *st,
+ int new)
{
dev_t rdev;
int retval;
umode_t umode;
struct inode *inode;
- struct p9_wstat *st;
struct v9fs_session_info *v9ses = sb->s_fs_info;
+ int (*test)(struct inode *inode, void *data);
- inode = iget_locked(sb, QID2INO(&fid->qid));
- if (unlikely(!inode))
- return ERR_PTR(-ENOMEM);
- if (!(inode->i_state & I_NEW)) {
- if (!new) {
- goto done;
- } else {
- p9_debug(P9_DEBUG_VFS, "WARNING: Inode collision %ld\n",
- inode->i_ino);
- iput(inode);
- remove_inode_hash(inode);
- inode = iget_locked(sb, QID2INO(&fid->qid));
- WARN_ON(!(inode->i_state & I_NEW));
- }
- }
+ if (new)
+ test = v9fs_test_new_inode;
+ else
+ test = v9fs_test_inode;
+ inode = iget5_locked(sb, QID2INO(qid), test, v9fs_set_inode, st);
+ if (!inode)
+ return ERR_PTR(-ENOMEM);
+ if (!(inode->i_state & I_NEW))
+ return inode;
/*
* initialize the inode with the stat info
* FIXME!! we may need support for stale inodes
* later.
*/
- st = p9_client_stat(fid);
- if (IS_ERR(st)) {
- retval = PTR_ERR(st);
- goto error;
- }
-
+ inode->i_ino = QID2INO(qid);
umode = p9mode2unixmode(v9ses, st, &rdev);
- retval = v9fs_init_inode(v9ses, inode, &fid->qid, umode, rdev);
- v9fs_stat2inode(st, inode, sb, 0);
- p9stat_free(st);
- kfree(st);
+ retval = v9fs_init_inode(v9ses, inode, umode, rdev);
if (retval)
goto error;
+ v9fs_stat2inode(st, inode, sb, 0);
v9fs_set_netfs_context(inode);
v9fs_cache_inode_get_cookie(inode);
unlock_new_inode(inode);
-done:
return inode;
error:
iget_failed(inode);
return ERR_PTR(retval);
+
+}
+
+struct inode *
+v9fs_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid,
+ struct super_block *sb, int new)
+{
+ struct p9_wstat *st;
+ struct inode *inode = NULL;
+
+ st = p9_client_stat(fid);
+ if (IS_ERR(st))
+ return ERR_CAST(st);
+
+ inode = v9fs_qid_iget(sb, &st->qid, st, new);
+ p9stat_free(st);
+ kfree(st);
+ return inode;
}
/**
@@ -450,15 +492,8 @@ static int v9fs_at_to_dotl_flags(int flags)
*/
static void v9fs_dec_count(struct inode *inode)
{
- if (!S_ISDIR(inode->i_mode) || inode->i_nlink > 2) {
- if (inode->i_nlink) {
- drop_nlink(inode);
- } else {
- p9_debug(P9_DEBUG_VFS,
- "WARNING: unexpected i_nlink zero %d inode %ld\n",
- inode->i_nlink, inode->i_ino);
- }
- }
+ if (!S_ISDIR(inode->i_mode) || inode->i_nlink > 2)
+ drop_nlink(inode);
}
/**
@@ -509,9 +544,6 @@ static int v9fs_remove(struct inode *dir, struct dentry *dentry, int flags)
} else
v9fs_dec_count(inode);
- if (inode->i_nlink <= 0) /* no more refs unhash it */
- remove_inode_hash(inode);
-
v9fs_invalidate_inode_attr(inode);
v9fs_invalidate_inode_attr(dir);
@@ -577,7 +609,7 @@ v9fs_create(struct v9fs_session_info *v9ses, struct inode *dir,
/*
* instantiate inode and assign the unopened fid to the dentry
*/
- inode = v9fs_get_inode_from_fid(v9ses, fid, dir->i_sb, true);
+ inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
if (IS_ERR(inode)) {
err = PTR_ERR(inode);
p9_debug(P9_DEBUG_VFS,
@@ -705,8 +737,10 @@ struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry,
inode = NULL;
else if (IS_ERR(fid))
inode = ERR_CAST(fid);
+ else if (v9ses->cache & (CACHE_META|CACHE_LOOSE))
+ inode = v9fs_get_inode_from_fid(v9ses, fid, dir->i_sb);
else
- inode = v9fs_get_inode_from_fid(v9ses, fid, dir->i_sb, false);
+ inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
/*
* If we had a rename on the server and a parallel lookup
* for the new name, then make sure we instantiate with