diff options
| author | Miklos Szeredi <mszeredi@suse.cz> | 2007-10-18 14:07:01 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-19 01:37:30 +0400 |
| commit | 17637cbaba592076c221dc045ca78422b4af6290 (patch) | |
| tree | 9b8148b29cb2c776cd96278c0710a890054a2b78 | |
| parent | d139d7ffd0c1e81e2a809909b4f8b121a0dc119a (diff) | |
| download | linux-17637cbaba592076c221dc045ca78422b4af6290.tar.xz | |
fuse: improve utimes support
Add two new flags for setattr: FATTR_ATIME_NOW and FATTR_MTIME_NOW. These
mean, that atime or mtime should be changed to the current time.
Also it is now possible to update atime or mtime individually, not just
together.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/fuse/dir.c | 28 | ||||
| -rw-r--r-- | include/linux/fuse.h | 2 |
2 files changed, 27 insertions, 3 deletions
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index 1e941b3f2453..537d38bee13c 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -1014,6 +1014,20 @@ static int fuse_dir_fsync(struct file *file, struct dentry *de, int datasync) return file ? fuse_fsync_common(file, de, datasync, 1) : 0; } +static bool update_mtime(unsigned ivalid) +{ + /* Always update if mtime is explicitly set */ + if (ivalid & ATTR_MTIME_SET) + return true; + + /* If it's an open(O_TRUNC) or an ftruncate(), don't update */ + if ((ivalid & ATTR_SIZE) && (ivalid & (ATTR_OPEN | ATTR_FILE))) + return false; + + /* In all other cases update */ + return true; +} + static void iattr_to_fattr(struct iattr *iattr, struct fuse_setattr_in *arg) { unsigned ivalid = iattr->ia_valid; @@ -1026,11 +1040,19 @@ static void iattr_to_fattr(struct iattr *iattr, struct fuse_setattr_in *arg) arg->valid |= FATTR_GID, arg->gid = iattr->ia_gid; if (ivalid & ATTR_SIZE) arg->valid |= FATTR_SIZE, arg->size = iattr->ia_size; - /* You can only _set_ these together (they may change by themselves) */ - if ((ivalid & (ATTR_ATIME | ATTR_MTIME)) == (ATTR_ATIME | ATTR_MTIME)) { - arg->valid |= FATTR_ATIME | FATTR_MTIME; + if (ivalid & ATTR_ATIME) { + arg->valid |= FATTR_ATIME; arg->atime = iattr->ia_atime.tv_sec; + arg->atimensec = iattr->ia_atime.tv_nsec; + if (!(ivalid & ATTR_ATIME_SET)) + arg->valid |= FATTR_ATIME_NOW; + } + if ((ivalid & ATTR_MTIME) && update_mtime(ivalid)) { + arg->valid |= FATTR_MTIME; arg->mtime = iattr->ia_mtime.tv_sec; + arg->mtimensec = iattr->ia_mtime.tv_nsec; + if (!(ivalid & ATTR_MTIME_SET)) + arg->valid |= FATTR_MTIME_NOW; } } diff --git a/include/linux/fuse.h b/include/linux/fuse.h index a50d0d9ac7ae..43a77d73349c 100644 --- a/include/linux/fuse.h +++ b/include/linux/fuse.h @@ -83,6 +83,8 @@ struct fuse_file_lock { #define FATTR_ATIME (1 << 4) #define FATTR_MTIME (1 << 5) #define FATTR_FH (1 << 6) +#define FATTR_ATIME_NOW (1 << 7) +#define FATTR_MTIME_NOW (1 << 8) /** * Flags returned by the OPEN request |