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authorLinus Torvalds <torvalds@linux-foundation.org>2018-10-31 14:50:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-10-31 14:50:02 -0700
commit9b5cf826ef8b607d452ba7bf683ae5510a745232 (patch)
tree278ef54cfcb6ba86480bd9d72c1c542233908c8b /include
parent31990f0f5366a8f66688edae8688723b22034108 (diff)
parent5571f1e65486be025f73fa6aa30fb03725d362a2 (diff)
Merge tag 'fuse-update-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi: "As well as the usual bug fixes, this adds the following new features: - cached readdir and readlink - max I/O size increased from 128k to 1M - improved performance and scalability of request queues - copy_file_range support The only non-fuse bits are trivial cleanups of macros in <linux/bitops.h>" * tag 'fuse-update-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (31 commits) fuse: enable caching of symlinks fuse: only invalidate atime in direct read fuse: don't need GETATTR after every READ fuse: allow fine grained attr cache invaldation bitops: protect variables in bit_clear_unless() macro bitops: protect variables in set_mask_bits() macro fuse: realloc page array fuse: add max_pages to init_out fuse: allocate page array more efficiently fuse: reduce size of struct fuse_inode fuse: use iversion for readdir cache verification fuse: use mtime for readdir cache verification fuse: add readdir cache version fuse: allow using readdir cache fuse: allow caching readdir fuse: extract fuse_emit() helper fuse: add FOPEN_CACHE_DIR fuse: split out readdir.c fuse: Use hash table to link processing request fuse: kill req->intr_unique ...
Diffstat (limited to 'include')
-rw-r--r--include/linux/bitops.h30
-rw-r--r--include/uapi/linux/fuse.h119
2 files changed, 87 insertions, 62 deletions
diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index 7ddb1349394d..705f7c442691 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -236,33 +236,33 @@ static __always_inline void __assign_bit(long nr, volatile unsigned long *addr,
#ifdef __KERNEL__
#ifndef set_mask_bits
-#define set_mask_bits(ptr, _mask, _bits) \
+#define set_mask_bits(ptr, mask, bits) \
({ \
- const typeof(*ptr) mask = (_mask), bits = (_bits); \
- typeof(*ptr) old, new; \
+ const typeof(*(ptr)) mask__ = (mask), bits__ = (bits); \
+ typeof(*(ptr)) old__, new__; \
\
do { \
- old = READ_ONCE(*ptr); \
- new = (old & ~mask) | bits; \
- } while (cmpxchg(ptr, old, new) != old); \
+ old__ = READ_ONCE(*(ptr)); \
+ new__ = (old__ & ~mask__) | bits__; \
+ } while (cmpxchg(ptr, old__, new__) != old__); \
\
- new; \
+ new__; \
})
#endif
#ifndef bit_clear_unless
-#define bit_clear_unless(ptr, _clear, _test) \
+#define bit_clear_unless(ptr, clear, test) \
({ \
- const typeof(*ptr) clear = (_clear), test = (_test); \
- typeof(*ptr) old, new; \
+ const typeof(*(ptr)) clear__ = (clear), test__ = (test);\
+ typeof(*(ptr)) old__, new__; \
\
do { \
- old = READ_ONCE(*ptr); \
- new = old & ~clear; \
- } while (!(old & test) && \
- cmpxchg(ptr, old, new) != old); \
+ old__ = READ_ONCE(*(ptr)); \
+ new__ = old__ & ~clear__; \
+ } while (!(old__ & test__) && \
+ cmpxchg(ptr, old__, new__) != old__); \
\
- !(old & test); \
+ !(old__ & test__); \
})
#endif
diff --git a/include/uapi/linux/fuse.h b/include/uapi/linux/fuse.h
index 92fa24c24c92..b4967d48bfda 100644
--- a/include/uapi/linux/fuse.h
+++ b/include/uapi/linux/fuse.h
@@ -116,6 +116,12 @@
*
* 7.27
* - add FUSE_ABORT_ERROR
+ *
+ * 7.28
+ * - add FUSE_COPY_FILE_RANGE
+ * - add FOPEN_CACHE_DIR
+ * - add FUSE_MAX_PAGES, add max_pages to init_out
+ * - add FUSE_CACHE_SYMLINKS
*/
#ifndef _LINUX_FUSE_H
@@ -151,7 +157,7 @@
#define FUSE_KERNEL_VERSION 7
/** Minor version number of this interface */
-#define FUSE_KERNEL_MINOR_VERSION 27
+#define FUSE_KERNEL_MINOR_VERSION 28
/** The node ID of the root inode */
#define FUSE_ROOT_ID 1
@@ -219,10 +225,12 @@ struct fuse_file_lock {
* FOPEN_DIRECT_IO: bypass page cache for this open file
* FOPEN_KEEP_CACHE: don't invalidate the data cache on open
* FOPEN_NONSEEKABLE: the file is not seekable
+ * FOPEN_CACHE_DIR: allow caching this directory
*/
#define FOPEN_DIRECT_IO (1 << 0)
#define FOPEN_KEEP_CACHE (1 << 1)
#define FOPEN_NONSEEKABLE (1 << 2)
+#define FOPEN_CACHE_DIR (1 << 3)
/**
* INIT request/reply flags
@@ -249,6 +257,8 @@ struct fuse_file_lock {
* FUSE_HANDLE_KILLPRIV: fs handles killing suid/sgid/cap on write/chown/trunc
* FUSE_POSIX_ACL: filesystem supports posix acls
* FUSE_ABORT_ERROR: reading the device after abort returns ECONNABORTED
+ * FUSE_MAX_PAGES: init_out.max_pages contains the max number of req pages
+ * FUSE_CACHE_SYMLINKS: cache READLINK responses
*/
#define FUSE_ASYNC_READ (1 << 0)
#define FUSE_POSIX_LOCKS (1 << 1)
@@ -272,6 +282,8 @@ struct fuse_file_lock {
#define FUSE_HANDLE_KILLPRIV (1 << 19)
#define FUSE_POSIX_ACL (1 << 20)
#define FUSE_ABORT_ERROR (1 << 21)
+#define FUSE_MAX_PAGES (1 << 22)
+#define FUSE_CACHE_SYMLINKS (1 << 23)
/**
* CUSE INIT request/reply flags
@@ -337,53 +349,54 @@ struct fuse_file_lock {
#define FUSE_POLL_SCHEDULE_NOTIFY (1 << 0)
enum fuse_opcode {
- FUSE_LOOKUP = 1,
- FUSE_FORGET = 2, /* no reply */
- FUSE_GETATTR = 3,
- FUSE_SETATTR = 4,
- FUSE_READLINK = 5,
- FUSE_SYMLINK = 6,
- FUSE_MKNOD = 8,
- FUSE_MKDIR = 9,
- FUSE_UNLINK = 10,
- FUSE_RMDIR = 11,
- FUSE_RENAME = 12,
- FUSE_LINK = 13,
- FUSE_OPEN = 14,
- FUSE_READ = 15,
- FUSE_WRITE = 16,
- FUSE_STATFS = 17,
- FUSE_RELEASE = 18,
- FUSE_FSYNC = 20,
- FUSE_SETXATTR = 21,
- FUSE_GETXATTR = 22,
- FUSE_LISTXATTR = 23,
- FUSE_REMOVEXATTR = 24,
- FUSE_FLUSH = 25,
- FUSE_INIT = 26,
- FUSE_OPENDIR = 27,
- FUSE_READDIR = 28,
- FUSE_RELEASEDIR = 29,
- FUSE_FSYNCDIR = 30,
- FUSE_GETLK = 31,
- FUSE_SETLK = 32,
- FUSE_SETLKW = 33,
- FUSE_ACCESS = 34,
- FUSE_CREATE = 35,
- FUSE_INTERRUPT = 36,
- FUSE_BMAP = 37,
- FUSE_DESTROY = 38,
- FUSE_IOCTL = 39,
- FUSE_POLL = 40,
- FUSE_NOTIFY_REPLY = 41,
- FUSE_BATCH_FORGET = 42,
- FUSE_FALLOCATE = 43,
- FUSE_READDIRPLUS = 44,
- FUSE_RENAME2 = 45,
- FUSE_LSEEK = 46,
+ FUSE_LOOKUP = 1,
+ FUSE_FORGET = 2, /* no reply */
+ FUSE_GETATTR = 3,
+ FUSE_SETATTR = 4,
+ FUSE_READLINK = 5,
+ FUSE_SYMLINK = 6,
+ FUSE_MKNOD = 8,
+ FUSE_MKDIR = 9,
+ FUSE_UNLINK = 10,
+ FUSE_RMDIR = 11,
+ FUSE_RENAME = 12,
+ FUSE_LINK = 13,
+ FUSE_OPEN = 14,
+ FUSE_READ = 15,
+ FUSE_WRITE = 16,
+ FUSE_STATFS = 17,
+ FUSE_RELEASE = 18,
+ FUSE_FSYNC = 20,
+ FUSE_SETXATTR = 21,
+ FUSE_GETXATTR = 22,
+ FUSE_LISTXATTR = 23,
+ FUSE_REMOVEXATTR = 24,
+ FUSE_FLUSH = 25,
+ FUSE_INIT = 26,
+ FUSE_OPENDIR = 27,
+ FUSE_READDIR = 28,
+ FUSE_RELEASEDIR = 29,
+ FUSE_FSYNCDIR = 30,
+ FUSE_GETLK = 31,
+ FUSE_SETLK = 32,
+ FUSE_SETLKW = 33,
+ FUSE_ACCESS = 34,
+ FUSE_CREATE = 35,
+ FUSE_INTERRUPT = 36,
+ FUSE_BMAP = 37,
+ FUSE_DESTROY = 38,
+ FUSE_IOCTL = 39,
+ FUSE_POLL = 40,
+ FUSE_NOTIFY_REPLY = 41,
+ FUSE_BATCH_FORGET = 42,
+ FUSE_FALLOCATE = 43,
+ FUSE_READDIRPLUS = 44,
+ FUSE_RENAME2 = 45,
+ FUSE_LSEEK = 46,
+ FUSE_COPY_FILE_RANGE = 47,
/* CUSE specific operations */
- CUSE_INIT = 4096,
+ CUSE_INIT = 4096,
};
enum fuse_notify_code {
@@ -610,7 +623,9 @@ struct fuse_init_out {
uint16_t congestion_threshold;
uint32_t max_write;
uint32_t time_gran;
- uint32_t unused[9];
+ uint16_t max_pages;
+ uint16_t padding;
+ uint32_t unused[8];
};
#define CUSE_INIT_INFO_MAX 4096
@@ -792,4 +807,14 @@ struct fuse_lseek_out {
uint64_t offset;
};
+struct fuse_copy_file_range_in {
+ uint64_t fh_in;
+ uint64_t off_in;
+ uint64_t nodeid_out;
+ uint64_t fh_out;
+ uint64_t off_out;
+ uint64_t len;
+ uint64_t flags;
+};
+
#endif /* _LINUX_FUSE_H */