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authorMiklos Szeredi <mszeredi@redhat.com>2021-10-22 18:03:02 +0300
committerMiklos Szeredi <mszeredi@redhat.com>2021-10-28 10:45:32 +0300
commit8c56e03d2e08d83776c89e4b6563ca8cfdf7da54 (patch)
treedb341870dd4f5f76c5b9858a77694b4b685f8c66 /fs/fuse
parentfa5eee57e33e79b71b40e6950c29cc46f5cc5cb7 (diff)
downloadlinux-8c56e03d2e08d83776c89e4b6563ca8cfdf7da54.tar.xz
fuse: don't bump attr_version in cached write
The attribute version in fuse_inode should be updated whenever the attributes might have changed on the server. In case of cached writes this is not the case, so updating the attr_version is unnecessary and could possibly affect performance. Open code the remaining part of fuse_write_update_size(). Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
Diffstat (limited to 'fs/fuse')
-rw-r--r--fs/fuse/file.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 06967d8e2742..c09ab835821a 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -2309,15 +2309,18 @@ static int fuse_write_end(struct file *file, struct address_space *mapping,
if (!copied)
goto unlock;
+ pos += copied;
if (!PageUptodate(page)) {
/* Zero any unwritten bytes at the end of the page */
- size_t endoff = (pos + copied) & ~PAGE_MASK;
+ size_t endoff = pos & ~PAGE_MASK;
if (endoff)
zero_user_segment(page, endoff, PAGE_SIZE);
SetPageUptodate(page);
}
- fuse_write_update_size(inode, pos + copied);
+ if (pos > inode->i_size)
+ i_size_write(inode, pos);
+
set_page_dirty(page);
unlock: