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ovl: use kiocb_{start,end}_write() helpers

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Use helpers instead of the open coded dance to silence lockdep warnings.

Suggested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Message-Id: <20230817141337.1025891-7-amir73il@gmail.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
This commit is contained in:
Amir Goldstein 2023-08-17 17:13:36 +03:00 committed by Christian Brauner
parent 8c3cfa80fd
commit 8f7371268a
1 changed files with 2 additions and 8 deletions
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10
fs/overlayfs/file.c
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@ -290,10 +290,7 @@ static void ovl_aio_cleanup_handler(struct ovl_aio_req *aio_req)
if (iocb->ki_flags & IOCB_WRITE) {
struct inode *inode = file_inode(orig_iocb->ki_filp);
/* Actually acquired in ovl_write_iter() */
__sb_writers_acquired(file_inode(iocb->ki_filp)->i_sb,
SB_FREEZE_WRITE);
file_end_write(iocb->ki_filp);
kiocb_end_write(iocb);
ovl_copyattr(inode);
}
@ -409,10 +406,6 @@ static ssize_t ovl_write_iter(struct kiocb *iocb, struct iov_iter *iter)
if (!aio_req)
goto out;
file_start_write(real.file);
/* Pacify lockdep, same trick as done in aio_write() */
__sb_writers_release(file_inode(real.file)->i_sb,
SB_FREEZE_WRITE);
aio_req->fd = real;
real.flags = 0;
aio_req->orig_iocb = iocb;
@ -420,6 +413,7 @@ static ssize_t ovl_write_iter(struct kiocb *iocb, struct iov_iter *iter)
aio_req->iocb.ki_flags = ifl;
aio_req->iocb.ki_complete = ovl_aio_rw_complete;
refcount_set(&aio_req->ref, 2);
kiocb_start_write(&aio_req->iocb);
ret = vfs_iocb_iter_write(real.file, &aio_req->iocb, iter);
ovl_aio_put(aio_req);
if (ret != -EIOCBQUEUED)