diff options
| author | Eric Van Hensbergen <ericvh@kernel.org> | 2024-04-15 23:24:37 +0300 |
|---|---|---|
| committer | Eric Van Hensbergen <ericvh@kernel.org> | 2024-04-22 18:34:27 +0300 |
| commit | d05dcfdf5e1659b2949d13060284eff3888b644e (patch) | |
| tree | a939610972e373a47c85686b68061acea929b5d0 /fs/9p/vfs_super.c | |
| parent | ed30a4a51bb196781c8058073ea720133a65596f (diff) | |
| download | linux-d05dcfdf5e1659b2949d13060284eff3888b644e.tar.xz | |
fs/9p: mitigate inode collisions
Detect and mitigate inode collsions that now occur since we
fixed 9p generating duplicate inode structures. Underlying
cause of these appears to be a race condition between reuse
of inode numbers in underlying file system and cleanup of
inode numbers in the client. Enabling caching
makes this much more likely to happen as it increases cleanup
latency due to writebacks.
Reported-by: Kent Overstreet <kent.overstreet@linux.dev>
Signed-off-by: Eric Van Hensbergen <ericvh@kernel.org>
Diffstat (limited to 'fs/9p/vfs_super.c')
| -rw-r--r-- | fs/9p/vfs_super.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c index 55e67e36ae68..f52fdf42945c 100644 --- a/fs/9p/vfs_super.c +++ b/fs/9p/vfs_super.c @@ -139,7 +139,7 @@ static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags, else sb->s_d_op = &v9fs_dentry_operations; - inode = v9fs_get_inode_from_fid(v9ses, fid, sb); + inode = v9fs_get_inode_from_fid(v9ses, fid, sb, true); if (IS_ERR(inode)) { retval = PTR_ERR(inode); goto release_sb; |