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| author | Chris Mason <chris.mason@oracle.com> | 2010-03-18 12:17:05 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2010-03-18 12:17:05 -0400 |
| commit | 1b53ac4d1b75b23bdc2b54ace787b8f718a987ef (patch) | |
| tree | 4ba3bf8dc5159d4b382b1e44306eef1875203c6a /fs/btrfs/ioctl.c | |
| parent | 90fdde147fd32d18a20be5b498d5f26e56cca8a3 (diff) | |
| download | linux-1b53ac4d1b75b23bdc2b54ace787b8f718a987ef.tar.gz linux-1b53ac4d1b75b23bdc2b54ace787b8f718a987ef.tar.bz2 linux-1b53ac4d1b75b23bdc2b54ace787b8f718a987ef.zip | |
Btrfs: allow treeid==0 in the inode lookup ioctl
When a root id of 0 is sent to the inode lookup ioctl, it will
use the root of the file we're ioctling and pass the root id
back to userland along with the results.
This allows userland to do searches based on that root later on.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/ioctl.c')
| -rw-r--r-- | fs/btrfs/ioctl.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index fd757f576956..1e462de6556e 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -1215,6 +1215,9 @@ static noinline int btrfs_ioctl_ino_lookup(struct file *file, } inode = fdentry(file)->d_inode; + if (args->treeid == 0) + args->treeid = BTRFS_I(inode)->root->root_key.objectid; + ret = btrfs_search_path_in_tree(BTRFS_I(inode)->root->fs_info, args->treeid, args->objectid, args->name); |