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| author | Miklos Szeredi <mszeredi@redhat.com> | 2021-10-22 17:03:03 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2021-10-28 09:45:32 +0200 |
| commit | 484ce65715b06aead8c4901f01ca32c5a240bc71 (patch) | |
| tree | 3ff2d4ed09ce03f4c151d41a5d19c169e1b9ec4d | |
| parent | d347739a0e760e9f370aa021da3feacc37d3e511 (diff) | |
| download | lwn-484ce65715b06aead8c4901f01ca32c5a240bc71.tar.gz lwn-484ce65715b06aead8c4901f01ca32c5a240bc71.zip | |
fuse: fix attr version comparison in fuse_read_update_size()
A READ request returning a short count is taken as indication of EOF, and
the cached file size is modified accordingly.
Fix the attribute version checking to allow for changes to fc->attr_version
on other inodes.
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
| -rw-r--r-- | fs/fuse/file.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/fuse/file.c b/fs/fuse/file.c index c3fd88da2a0b..ddd563fda648 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -787,7 +787,7 @@ static void fuse_read_update_size(struct inode *inode, loff_t size, struct fuse_inode *fi = get_fuse_inode(inode); spin_lock(&fi->lock); - if (attr_ver == fi->attr_version && size < inode->i_size && + if (attr_ver >= fi->attr_version && size < inode->i_size && !test_bit(FUSE_I_SIZE_UNSTABLE, &fi->state)) { fi->attr_version = atomic64_inc_return(&fc->attr_version); i_size_write(inode, size); |