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libfuse: allow setting ctime in ->setattr()

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This commit is contained in:
Miklos Szeredi
2014-07-15 17:41:02 +02:00
parent 57a93b3dac
commit 978d10a42b
5 changed files with 15 additions and 3 deletions
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ChangeLog
+2
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@@ -12,6 +12,8 @@
specify the time granularity it supports when the kernel is
responsible for updating times ("writeback_cache" option).
* libfuse: allow setting ctime in ->setattr()
2014-03-26 Miklos Szeredi <miklos@szeredi.hu>
* Initilaize stat buffer passed to ->getattr() and ->fgetattr() to
include/fuse_kernel.h
+5 -2
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@@ -98,6 +98,8 @@
* - add FUSE_WRITEBACK_CACHE
* - add time_gran to fuse_init_out
* - add reserved space to fuse_init_out
* - add FATTR_CTIME
* - add ctime and ctimensec to fuse_setattr_in
*/
#ifndef _LINUX_FUSE_H
@@ -193,6 +195,7 @@ struct fuse_file_lock {
#define FATTR_ATIME_NOW (1 << 7)
#define FATTR_MTIME_NOW (1 << 8)
#define FATTR_LOCKOWNER (1 << 9)
#define FATTR_CTIME (1 << 10)
/**
* Flags returned by the OPEN request
@@ -440,10 +443,10 @@ struct fuse_setattr_in {
uint64_t lock_owner;
uint64_t atime;
uint64_t mtime;
uint64_t unused2;
uint64_t ctime;
uint32_t atimensec;
uint32_t mtimensec;
uint32_t unused3;
uint32_t ctimensec;
uint32_t mode;
uint32_t unused4;
uint32_t uid;
include/fuse_lowlevel.h
+1
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@@ -135,6 +135,7 @@ struct fuse_forget_data {
#define FUSE_SET_ATTR_MTIME (1 << 5)
#define FUSE_SET_ATTR_ATIME_NOW (1 << 7)
#define FUSE_SET_ATTR_MTIME_NOW (1 << 8)
#define FUSE_SET_ATTR_CTIME (1 << 10)
/* ----------------------------------------------------------- *
* Request methods and replies *
lib/fuse_lowlevel.c
+4 -1
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@@ -79,8 +79,10 @@ static void convert_attr(const struct fuse_setattr_in *attr, struct stat *stbuf)
stbuf->st_size = attr->size;
stbuf->st_atime = attr->atime;
stbuf->st_mtime = attr->mtime;
stbuf->st_ctime = attr->ctime;
ST_ATIM_NSEC_SET(stbuf, attr->atimensec);
ST_MTIM_NSEC_SET(stbuf, attr->mtimensec);
ST_CTIM_NSEC_SET(stbuf, attr->ctimensec);
}
static size_t iov_length(const struct iovec *iov, size_t count)
@@ -1173,7 +1175,8 @@ static void do_setattr(fuse_req_t req, fuse_ino_t nodeid, const void *inarg)
FUSE_SET_ATTR_ATIME |
FUSE_SET_ATTR_MTIME |
FUSE_SET_ATTR_ATIME_NOW |
FUSE_SET_ATTR_MTIME_NOW;
FUSE_SET_ATTR_MTIME_NOW |
FUSE_SET_ATTR_CTIME;
req->f->op.setattr(req, nodeid, &stbuf, arg->valid, fi);
} else
lib/fuse_misc.h
+3
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@@ -28,6 +28,7 @@ static inline void fuse_mutex_init(pthread_mutex_t *mut)
#define ST_CTIM_NSEC(stbuf) ((stbuf)->st_ctim.tv_nsec)
#define ST_MTIM_NSEC(stbuf) ((stbuf)->st_mtim.tv_nsec)
#define ST_ATIM_NSEC_SET(stbuf, val) (stbuf)->st_atim.tv_nsec = (val)
#define ST_CTIM_NSEC_SET(stbuf, val) (stbuf)->st_ctim.tv_nsec = (val)
#define ST_MTIM_NSEC_SET(stbuf, val) (stbuf)->st_mtim.tv_nsec = (val)
#elif defined(HAVE_STRUCT_STAT_ST_ATIMESPEC)
/* FreeBSD */
@@ -35,11 +36,13 @@ static inline void fuse_mutex_init(pthread_mutex_t *mut)
#define ST_CTIM_NSEC(stbuf) ((stbuf)->st_ctimespec.tv_nsec)
#define ST_MTIM_NSEC(stbuf) ((stbuf)->st_mtimespec.tv_nsec)
#define ST_ATIM_NSEC_SET(stbuf, val) (stbuf)->st_atimespec.tv_nsec = (val)
#define ST_CTIM_NSEC_SET(stbuf, val) (stbuf)->st_ctimespec.tv_nsec = (val)
#define ST_MTIM_NSEC_SET(stbuf, val) (stbuf)->st_mtimespec.tv_nsec = (val)
#else
#define ST_ATIM_NSEC(stbuf) 0
#define ST_CTIM_NSEC(stbuf) 0
#define ST_MTIM_NSEC(stbuf) 0
#define ST_ATIM_NSEC_SET(stbuf, val) do { } while (0)
#define ST_CTIM_NSEC_SET(stbuf, val) do { } while (0)
#define ST_MTIM_NSEC_SET(stbuf, val) do { } while (0)
#endif