diff options
| author | Henri Doreau <henri.doreau@cea.fr> | 2016-09-18 16:37:53 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-09-19 09:44:03 +0200 |
| commit | a6d879fd08cd904c3595c338bb7995680b1ead13 (patch) | |
| tree | e44b88389b8b829abb3673e3a8687bef7d746f13 /drivers/staging/lustre/lustre/llite/dir.c | |
| parent | eb1ddc6724f8b5e7f8d0fe1b2e29327802fe0503 (diff) | |
staging: lustre: llite: Add ioctl to get parent fids from link EA.
Added LL_IOC_GETPARENT to retrieve the <parent_fid>/name(s) of a given
entry, based on its link EA. This saves multiple calls to
path2fid/fid2path.
Merged with second later patch that does various cleanups.
Avoid unneeded allocation. Get read-only attributes from the user
getparent structure and write the modified attributes only, instead
of populating a whole structure in kernel and copying it back.
Signed-off-by: Thomas Leibovici <thomas.leibovici@cea.fr>
Signed-off-by: Henri Doreau <henri.doreau@cea.fr>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3613
Reviewed-on: http://review.whamcloud.com/7069
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5837
Reviewed-on: http://review.whamcloud.com/12527
Reviewed-by: Ned Bass <bass6@llnl.gov>
Reviewed-by: frank zago <fzago@cray.com>
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: James Simmons <jsimmons@infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/lustre/lustre/llite/dir.c')
| -rw-r--r-- | drivers/staging/lustre/lustre/llite/dir.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c index 234095ef606b..705de1ce185a 100644 --- a/drivers/staging/lustre/lustre/llite/dir.c +++ b/drivers/staging/lustre/lustre/llite/dir.c @@ -1562,6 +1562,8 @@ out_quotactl: return rc; case OBD_IOC_FID2PATH: return ll_fid2path(inode, (void __user *)arg); + case LL_IOC_GETPARENT: + return ll_getparent(file, (void __user *)arg); case LL_IOC_FID2MDTIDX: { struct obd_export *exp = ll_i2mdexp(inode); struct lu_fid fid; |