linux-kernel - [PATCH] fuse: redundant get_fuse_inode() calls in fuse_writepages

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <c09509ef-982e-d4bd-ed0b-da8389a7d066@virtuozzo.com>
Date:   Mon, 19 Aug 2019 08:48:26 +0300
From:   Vasily Averin <vvs@...tuozzo.com>
To:     linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        Miklos Szeredi <miklos@...redi.hu>
Subject: [PATCH] fuse: redundant get_fuse_inode() calls in
 fuse_writepages_fill()

Currently fuse_writepages_fill() calls get_fuse_inode() few times with
the same argument.

Signed-off-by: Vasily Averin <vvs@...tuozzo.com>
---
 fs/fuse/file.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index e076c2cf65b0..bc9b64ef7b5d 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1874,7 +1874,7 @@ static int fuse_writepages_fill(struct page *page,
 
 	if (!data->ff) {
 		err = -EIO;
-		data->ff = fuse_write_file_get(fc, get_fuse_inode(inode));
+		data->ff = fuse_write_file_get(fc, fi);
 		if (!data->ff)
 			goto out_unlock;
 	}
@@ -1919,8 +1919,6 @@ static int fuse_writepages_fill(struct page *page,
 	 * under writeback, so we can release the page lock.
 	 */
 	if (data->req == NULL) {
-		struct fuse_inode *fi = get_fuse_inode(inode);
-
 		err = -ENOMEM;
 		req = fuse_request_alloc_nofs(FUSE_REQ_INLINE_PAGES);
 		if (!req) {
-- 
2.17.1