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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-08-03 22:50:22 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-08-03 22:50:22 +0200 |
| commit | 5264406cdb66c7003eb3edf53c9773b1b20611b9 (patch) | |
| tree | e94f76f64a0b3b45dcb9f9bec85cce2ba78e1221 /fs/direct-io.c | |
| parent | Merge tag 'pull-work.dcache' of git://git.kernel.org/pub/scm/linux/kernel/git... (diff) | |
| parent | first_iovec_segment(): just return address (diff) | |
| download | linux-5264406cdb66c7003eb3edf53c9773b1b20611b9.tar.xz linux-5264406cdb66c7003eb3edf53c9773b1b20611b9.zip | |
Merge tag 'pull-work.iov_iter-base' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs iov_iter updates from Al Viro:
"Part 1 - isolated cleanups and optimizations.
One of the goals is to reduce the overhead of using ->read_iter() and
->write_iter() instead of ->read()/->write().
new_sync_{read,write}() has a surprising amount of overhead, in
particular inside iocb_flags(). That's the explanation for the
beginning of the series is in this pile; it's not directly
iov_iter-related, but it's a part of the same work..."
* tag 'pull-work.iov_iter-base' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
first_iovec_segment(): just return address
iov_iter: massage calling conventions for first_{iovec,bvec}_segment()
iov_iter: first_{iovec,bvec}_segment() - simplify a bit
iov_iter: lift dealing with maxpages out of first_{iovec,bvec}_segment()
iov_iter_get_pages{,_alloc}(): cap the maxsize with MAX_RW_COUNT
iov_iter_bvec_advance(): don't bother with bvec_iter
copy_page_{to,from}_iter(): switch iovec variants to generic
keep iocb_flags() result cached in struct file
iocb: delay evaluation of IS_SYNC(...) until we want to check IOCB_DSYNC
struct file: use anonymous union member for rcuhead and llist
btrfs: use IOMAP_DIO_NOSYNC
teach iomap_dio_rw() to suppress dsync
No need of likely/unlikely on calls of check_copy_size()
Diffstat (limited to 'fs/direct-io.c')
| -rw-r--r-- | fs/direct-io.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/direct-io.c b/fs/direct-io.c index 94b71440c332..df5e2d048799 100644 --- a/fs/direct-io.c +++ b/fs/direct-io.c @@ -1216,7 +1216,7 @@ ssize_t __blockdev_direct_IO(struct kiocb *iocb, struct inode *inode, */ if (dio->is_async && iov_iter_rw(iter) == WRITE) { retval = 0; - if (iocb->ki_flags & IOCB_DSYNC) + if (iocb_is_dsync(iocb)) retval = dio_set_defer_completion(dio); else if (!dio->inode->i_sb->s_dio_done_wq) { /* |