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authorLinus Torvalds <torvalds@linux-foundation.org>2022-08-03 13:50:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2022-08-03 13:50:22 -0700
commit5264406cdb66c7003eb3edf53c9773b1b20611b9 (patch)
treee94f76f64a0b3b45dcb9f9bec85cce2ba78e1221 /arch/s390/include
parentMerge tag 'pull-work.dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs (diff)
parentfirst_iovec_segment(): just return address (diff)
downloadlinux-dev-5264406cdb66c7003eb3edf53c9773b1b20611b9.tar.xz
linux-dev-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 'arch/s390/include')
-rw-r--r--arch/s390/include/asm/uaccess.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
index f4511e21d646..c2c9995466e0 100644
--- a/arch/s390/include/asm/uaccess.h
+++ b/arch/s390/include/asm/uaccess.h
@@ -39,7 +39,7 @@ _copy_from_user_key(void *to, const void __user *from, unsigned long n, unsigned
static __always_inline unsigned long __must_check
copy_from_user_key(void *to, const void __user *from, unsigned long n, unsigned long key)
{
- if (likely(check_copy_size(to, n, false)))
+ if (check_copy_size(to, n, false))
n = _copy_from_user_key(to, from, n, key);
return n;
}
@@ -50,7 +50,7 @@ _copy_to_user_key(void __user *to, const void *from, unsigned long n, unsigned l
static __always_inline unsigned long __must_check
copy_to_user_key(void __user *to, const void *from, unsigned long n, unsigned long key)
{
- if (likely(check_copy_size(from, n, true)))
+ if (check_copy_size(from, n, true))
n = _copy_to_user_key(to, from, n, key);
return n;
}