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author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-08-08 20:04:35 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-08-08 20:04:35 -0700 |
commit | f30adc0d332fdfe5315cb98bd6a7ff0d5cf2aa38 (patch) | |
tree | 27a82d8230b5c6462c1eb4f9ba3ff80ed0906229 /fs/read_write.c | |
parent | 5d5d353bed32dc3ea52e2619e0d1c60b17133b91 (diff) | |
parent | c03f05f183cd15f4259684ab658fbc3d23797d99 (diff) |
Merge tag 'pull-work.iov_iter-rebased' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull more iov_iter updates from Al Viro:
- more new_sync_{read,write}() speedups - ITER_UBUF introduction
- ITER_PIPE cleanups
- unification of iov_iter_get_pages/iov_iter_get_pages_alloc and
switching them to advancing semantics
- making ITER_PIPE take high-order pages without splitting them
- handling copy_page_from_iter() for high-order pages properly
* tag 'pull-work.iov_iter-rebased' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (32 commits)
fix copy_page_from_iter() for compound destinations
hugetlbfs: copy_page_to_iter() can deal with compound pages
copy_page_to_iter(): don't split high-order page in case of ITER_PIPE
expand those iov_iter_advance()...
pipe_get_pages(): switch to append_pipe()
get rid of non-advancing variants
ceph: switch the last caller of iov_iter_get_pages_alloc()
9p: convert to advancing variant of iov_iter_get_pages_alloc()
af_alg_make_sg(): switch to advancing variant of iov_iter_get_pages()
iter_to_pipe(): switch to advancing variant of iov_iter_get_pages()
block: convert to advancing variants of iov_iter_get_pages{,_alloc}()
iov_iter: advancing variants of iov_iter_get_pages{,_alloc}()
iov_iter: saner helper for page array allocation
fold __pipe_get_pages() into pipe_get_pages()
ITER_XARRAY: don't open-code DIV_ROUND_UP()
unify the rest of iov_iter_get_pages()/iov_iter_get_pages_alloc() guts
unify xarray_get_pages() and xarray_get_pages_alloc()
unify pipe_get_pages() and pipe_get_pages_alloc()
iov_iter_get_pages(): sanity-check arguments
iov_iter_get_pages_alloc(): lift freeing pages array on failure exits into wrapper
...
Diffstat (limited to 'fs/read_write.c')
-rw-r--r-- | fs/read_write.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/fs/read_write.c b/fs/read_write.c index ea59dd0095c2..1a261dcf1778 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -378,14 +378,13 @@ EXPORT_SYMBOL(rw_verify_area); static ssize_t new_sync_read(struct file *filp, char __user *buf, size_t len, loff_t *ppos) { - struct iovec iov = { .iov_base = buf, .iov_len = len }; struct kiocb kiocb; struct iov_iter iter; ssize_t ret; init_sync_kiocb(&kiocb, filp); kiocb.ki_pos = (ppos ? *ppos : 0); - iov_iter_init(&iter, READ, &iov, 1, len); + iov_iter_ubuf(&iter, READ, buf, len); ret = call_read_iter(filp, &kiocb, &iter); BUG_ON(ret == -EIOCBQUEUED); @@ -481,14 +480,13 @@ ssize_t vfs_read(struct file *file, char __user *buf, size_t count, loff_t *pos) static ssize_t new_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos) { - struct iovec iov = { .iov_base = (void __user *)buf, .iov_len = len }; struct kiocb kiocb; struct iov_iter iter; ssize_t ret; init_sync_kiocb(&kiocb, filp); kiocb.ki_pos = (ppos ? *ppos : 0); - iov_iter_init(&iter, WRITE, &iov, 1, len); + iov_iter_ubuf(&iter, WRITE, (void __user *)buf, len); ret = call_write_iter(filp, &kiocb, &iter); BUG_ON(ret == -EIOCBQUEUED); |