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>

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index c3fd88d..ddd563f 100644 (file)
--- 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);