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authorChristian Brauner <brauner@kernel.org>2023-08-06 15:49:35 +0300
committerChristian Brauner <brauner@kernel.org>2023-08-06 16:08:36 +0300
commit7d84d1b9af6366aa9df1b523bdb7e002372e38d0 (patch)
tree450616a5bc325b21b528fa6928294e69f8ffe733 /fs/file.c
parent3e3271549670783be20e233a2b78a87a0b04c715 (diff)
downloadlinux-7d84d1b9af6366aa9df1b523bdb7e002372e38d0.tar.xz
fs: rely on ->iterate_shared to determine f_pos locking
Now that we removed ->iterate we don't need to check for either ->iterate or ->iterate_shared in file_needs_f_pos_lock(). Simply check for ->iterate_shared instead. This will tell us whether we need to unconditionally take the lock. Not just does it allow us to avoid checking f_inode's mode it also actually clearly shows that we're locking because of readdir. Signed-off-by: Christian Brauner <brauner@kernel.org>
Diffstat (limited to 'fs/file.c')
-rw-r--r--fs/file.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/file.c b/fs/file.c
index dbca26ef7a01..3fd003a8604f 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -1049,7 +1049,7 @@ unsigned long __fdget_raw(unsigned int fd)
static inline bool file_needs_f_pos_lock(struct file *file)
{
return (file->f_mode & FMODE_ATOMIC_POS) &&
- (file_count(file) > 1 || S_ISDIR(file_inode(file)->i_mode));
+ (file_count(file) > 1 || file->f_op->iterate_shared);
}
unsigned long __fdget_pos(unsigned int fd)