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authorMiklos Szeredi <mszeredi@suse.cz>2007-10-18 03:07:02 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-18 14:37:31 -0700
commit6ff958edbf39c014eb06b65ad25b736be08c4e63 (patch)
treef87af1ae11b321cfa38c25378229f25942797385 /fs/fuse/dir.c
parent17637cbaba592076c221dc045ca78422b4af6290 (diff)
fuse: add atomic open+truncate support
This patch allows fuse filesystems to implement open(..., O_TRUNC) as a single request, instead of separate truncate and open requests. 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>
Diffstat (limited to 'fs/fuse/dir.c')
-rw-r--r--fs/fuse/dir.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 537d38bee13c..052327bd6c9d 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1083,6 +1083,9 @@ static int fuse_do_setattr(struct dentry *entry, struct iattr *attr,
return err;
}
+ if ((attr->ia_valid & ATTR_OPEN) && fc->atomic_o_trunc)
+ return 0;
+
if (attr->ia_valid & ATTR_SIZE) {
unsigned long limit;
if (IS_SWAPFILE(inode))