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io_uring: optimise kiocb_end_write for !ISREG

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file_end_write() is only for regular files, so the function do a couple
of dereferences to get inode and check for it. However, we already have
REQ_F_ISREG at hand, just use it and inline file_end_write().

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Pavel Begunkov 2021-03-22 01:58:31 +00:00 committed by Jens Axboe
parent 59d7001345
commit 1c98679db9
1 changed files with 3 additions and 3 deletions
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6
fs/io_uring.c
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@ -2431,11 +2431,11 @@ static void kiocb_end_write(struct io_kiocb *req)
* thread. * thread.
*/ */
if (req->flags & REQ_F_ISREG) { if (req->flags & REQ_F_ISREG) {
struct inode *inode = file_inode(req->file); struct super_block *sb = file_inode(req->file)->i_sb;
__sb_writers_acquired(inode->i_sb, SB_FREEZE_WRITE); __sb_writers_acquired(sb, SB_FREEZE_WRITE);
sb_end_write(sb);
} }
file_end_write(req->file);
} }
#ifdef CONFIG_BLOCK #ifdef CONFIG_BLOCK