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author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-21 17:03:54 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-21 17:03:54 (GMT) |
commit | c4bc705e45d91f900f7ec2e23a458280b084ae91 (patch) | |
tree | 54dc459057ddbcd33321d255b0a94f213dc43910 /fs/fuse/cuse.c | |
parent | 2608e3d0fa63b892f37a9f1921c2d2b37c7933c1 (diff) | |
parent | 634734b63ac39e137a1c623ba74f3e062b6577db (diff) | |
download | linux-fsl-qoriq-c4bc705e45d91f900f7ec2e23a458280b084ae91.tar.xz |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi:
"The biggest part of this pull request is a patch series from Maxim
Patlasov to optimize scatter-gather direct IO. There's also the
addition of a "readdirplus" API, poll events and various fixes and
cleanups.
There's a one line change outside of fuse to mm/filemap.c which makes
the argument of iov_iter_single_seg_count() const, required by Maxim's
patches."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (22 commits)
fuse: allow control of adaptive readdirplus use
Synchronize fuse header with one used in library
fuse: send poll events
fuse: don't WARN when nlink is zero
fuse: avoid out-of-scope stack access
fuse: bump version for READDIRPLUS
FUSE: Adapt readdirplus to application usage patterns
Do not use RCU for current process credentials
fuse: cleanup fuse_direct_io()
fuse: optimize __fuse_direct_io()
fuse: optimize fuse_get_user_pages()
fuse: pass iov[] to fuse_get_user_pages()
mm: minor cleanup of iov_iter_single_seg_count()
fuse: use req->page_descs[] for argpages cases
fuse: add per-page descriptor <offset, length> to fuse_req
fuse: rework fuse_do_ioctl()
fuse: rework fuse_perform_write()
fuse: rework fuse_readpages()
fuse: rework fuse_retrieve()
fuse: categorize fuse_get_req()
...
Diffstat (limited to 'fs/fuse/cuse.c')
-rw-r--r-- | fs/fuse/cuse.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c index e397b67..6f96a8d 100644 --- a/fs/fuse/cuse.c +++ b/fs/fuse/cuse.c @@ -91,19 +91,22 @@ static ssize_t cuse_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { loff_t pos = 0; + struct iovec iov = { .iov_base = buf, .iov_len = count }; - return fuse_direct_io(file, buf, count, &pos, 0); + return fuse_direct_io(file, &iov, 1, count, &pos, 0); } static ssize_t cuse_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { loff_t pos = 0; + struct iovec iov = { .iov_base = (void __user *)buf, .iov_len = count }; + /* * No locking or generic_write_checks(), the server is * responsible for locking and sanity checks. */ - return fuse_direct_io(file, buf, count, &pos, 1); + return fuse_direct_io(file, &iov, 1, count, &pos, 1); } static int cuse_open(struct inode *inode, struct file *file) @@ -419,7 +422,7 @@ static int cuse_send_init(struct cuse_conn *cc) BUILD_BUG_ON(CUSE_INIT_INFO_MAX > PAGE_SIZE); - req = fuse_get_req(fc); + req = fuse_get_req(fc, 1); if (IS_ERR(req)) { rc = PTR_ERR(req); goto err; @@ -449,6 +452,7 @@ static int cuse_send_init(struct cuse_conn *cc) req->out.argvar = 1; req->out.argpages = 1; req->pages[0] = page; + req->page_descs[0].length = req->out.args[1].size; req->num_pages = 1; req->end = cuse_process_init_reply; fuse_request_send_background(fc, req); |