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author | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-21 21:03:54 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-21 21:03:54 +0400 |
commit | c4bc705e45d91f900f7ec2e23a458280b084ae91 (patch) | |
tree | 54dc459057ddbcd33321d255b0a94f213dc43910 /include | |
parent | 2608e3d0fa63b892f37a9f1921c2d2b37c7933c1 (diff) | |
parent | 634734b63ac39e137a1c623ba74f3e062b6577db (diff) | |
download | linux-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 'include')
-rw-r--r-- | include/linux/fs.h | 2 | ||||
-rw-r--r-- | include/uapi/linux/fuse.h | 60 |
2 files changed, 58 insertions, 4 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h index 7617ee04f066..7d2e893ec3d1 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -301,7 +301,7 @@ size_t iov_iter_copy_from_user(struct page *page, struct iov_iter *i, unsigned long offset, size_t bytes); void iov_iter_advance(struct iov_iter *i, size_t bytes); int iov_iter_fault_in_readable(struct iov_iter *i, size_t bytes); -size_t iov_iter_single_seg_count(struct iov_iter *i); +size_t iov_iter_single_seg_count(const struct iov_iter *i); static inline void iov_iter_init(struct iov_iter *i, const struct iovec *iov, unsigned long nr_segs, diff --git a/include/uapi/linux/fuse.h b/include/uapi/linux/fuse.h index d8c713e148e3..4c43b4448792 100644 --- a/include/uapi/linux/fuse.h +++ b/include/uapi/linux/fuse.h @@ -1,9 +1,35 @@ /* - FUSE: Filesystem in Userspace + This file defines the kernel interface of FUSE Copyright (C) 2001-2008 Miklos Szeredi <miklos@szeredi.hu> This program can be distributed under the terms of the GNU GPL. See the file COPYING. + + This -- and only this -- header file may also be distributed under + the terms of the BSD Licence as follows: + + Copyright (C) 2001-2007 Miklos Szeredi. All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + 1. Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + 2. Redistributions in binary form must reproduce the above copyright + notice, this list of conditions and the following disclaimer in the + documentation and/or other materials provided with the distribution. + + THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND + ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE + FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + SUCH DAMAGE. */ /* @@ -60,12 +86,25 @@ * * 7.20 * - add FUSE_AUTO_INVAL_DATA + * + * 7.21 + * - add FUSE_READDIRPLUS + * - send the requested events in POLL request */ #ifndef _LINUX_FUSE_H #define _LINUX_FUSE_H +#ifdef __linux__ #include <linux/types.h> +#else +#include <stdint.h> +#define __u64 uint64_t +#define __s64 int64_t +#define __u32 uint32_t +#define __s32 int32_t +#define __u16 uint16_t +#endif /* * Version negotiation: @@ -91,7 +130,7 @@ #define FUSE_KERNEL_VERSION 7 /** Minor version number of this interface */ -#define FUSE_KERNEL_MINOR_VERSION 20 +#define FUSE_KERNEL_MINOR_VERSION 21 /** The node ID of the root inode */ #define FUSE_ROOT_ID 1 @@ -179,6 +218,8 @@ struct fuse_file_lock { * FUSE_FLOCK_LOCKS: remote locking for BSD style file locks * FUSE_HAS_IOCTL_DIR: kernel supports ioctl on directories * FUSE_AUTO_INVAL_DATA: automatically invalidate cached pages + * FUSE_DO_READDIRPLUS: do READDIRPLUS (READDIR+LOOKUP in one) + * FUSE_READDIRPLUS_AUTO: adaptive readdirplus */ #define FUSE_ASYNC_READ (1 << 0) #define FUSE_POSIX_LOCKS (1 << 1) @@ -193,6 +234,8 @@ struct fuse_file_lock { #define FUSE_FLOCK_LOCKS (1 << 10) #define FUSE_HAS_IOCTL_DIR (1 << 11) #define FUSE_AUTO_INVAL_DATA (1 << 12) +#define FUSE_DO_READDIRPLUS (1 << 13) +#define FUSE_READDIRPLUS_AUTO (1 << 14) /** * CUSE INIT request/reply flags @@ -299,6 +342,7 @@ enum fuse_opcode { FUSE_NOTIFY_REPLY = 41, FUSE_BATCH_FORGET = 42, FUSE_FALLOCATE = 43, + FUSE_READDIRPLUS = 44, /* CUSE specific operations */ CUSE_INIT = 4096, @@ -580,7 +624,7 @@ struct fuse_poll_in { __u64 fh; __u64 kh; __u32 flags; - __u32 padding; + __u32 events; }; struct fuse_poll_out { @@ -630,6 +674,16 @@ struct fuse_dirent { #define FUSE_DIRENT_SIZE(d) \ FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen) +struct fuse_direntplus { + struct fuse_entry_out entry_out; + struct fuse_dirent dirent; +}; + +#define FUSE_NAME_OFFSET_DIRENTPLUS \ + offsetof(struct fuse_direntplus, dirent.name) +#define FUSE_DIRENTPLUS_SIZE(d) \ + FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET_DIRENTPLUS + (d)->dirent.namelen) + struct fuse_notify_inval_inode_out { __u64 ino; __s64 off; |