diff options
| author | Filipe David Borba Manana <fdmanana@gmail.com> | 2014-04-15 20:47:27 +0100 |
|---|---|---|
| committer | David Sterba <dsterba@suse.cz> | 2014-05-02 17:03:21 +0200 |
| commit | 1e6195885baa1d3aea7b75c6fb752ce293e1b936 (patch) | |
| tree | fc936a10d7df2fcd93c69abf20ec525cccb0bcfe /props.c | |
| parent | 726bc372b9529a11c79dea75f2bcc8ef8a34d67a (diff) | |
Btrfs-progs: allow compression property gets for read-only subvolumes
Because the function open_file_or_dir() always opened the input file in
read/write mode (O_RDWR), we were not able to due a compression property
get against a file living in a read-only subvolume/snapshot.
Fix this by opening the file with O_RDONLY mode if we're doing a property
get.
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
Diffstat (limited to 'props.c')
| -rw-r--r-- | props.c | 3 |
1 files changed, 2 insertions, 1 deletions
@@ -119,8 +119,9 @@ static int prop_compression(enum prop_object_type type, DIR *dirstream = NULL; char *buf = NULL; char *xattr_name = NULL; + int open_flags = value ? O_RDWR : O_RDONLY; - fd = open_file_or_dir(object, &dirstream); + fd = open_file_or_dir3(object, &dirstream, open_flags); if (fd == -1) { ret = -errno; fprintf(stderr, "ERROR: open %s failed. %s\n", |