From: Miklos Szeredi mszeredi@redhat.com
commit 484ce65715b06aead8c4901f01ca32c5a240bc71 upstream.
[backport for 5.15.y]
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 Signed-off-by: Yang Bo yb203166@antfin.com --- fs/fuse/file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/fuse/file.c b/fs/fuse/file.c index 2b19d281351e..ab994ecdaf38 100644 --- a/fs/fuse/file.c +++ b/fs/fuse/file.c @@ -793,7 +793,7 @@ 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);