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staging: lustre: llite: handle inactive OSTs better in statfs 

Change the order of checks for inactive OSCs in lov_prep_statfs_set()
so that administratively disabled OSTs do not generate any output in
"lfs df" at all, to avoid needlessly cluttering the output.

Enable the lazystatfs mount option by default, so that "df" does not
hang when an OST is temporarily offline.

Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-7759
Reviewed-on: http://review.whamcloud.com/19195
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>
This commit is contained in:
Andreas Dilger 2017-01-28 19:04:47 -05:00 committed by Greg Kroah-Hartman
parent 4c43c27ddc
commit 7304370b57
2 changed files with 4 additions and 3 deletions
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1
drivers/staging/lustre/lustre/llite/llite_lib.c
View File

@ -103,6 +103,7 @@ static struct ll_sb_info *ll_init_sbi(struct super_block *sb)
sbi->ll_flags |= LL_SBI_CHECKSUM;
sbi->ll_flags |= LL_SBI_LRU_RESIZE;
sbi->ll_flags |= LL_SBI_LAZYSTATFS;
for (i = 0; i <= LL_PROCESS_HIST_MAX; i++) {
spin_lock_init(&sbi->ll_rw_extents_info.pp_extents[i].

6
drivers/staging/lustre/lustre/lov/lov_request.c
View File

@ -344,9 +344,6 @@ int lov_prep_statfs_set(struct obd_device *obd, struct obd_info *oinfo,
continue;
}
if (!lov->lov_tgts[i]->ltd_active)
lov_check_and_wait_active(lov, i);
/* skip targets that have been explicitly disabled by the
* administrator
*/
@ -355,6 +352,9 @@ int lov_prep_statfs_set(struct obd_device *obd, struct obd_info *oinfo,
continue;
}
if (!lov->lov_tgts[i]->ltd_active)
lov_check_and_wait_active(lov, i);
req = kzalloc(sizeof(*req), GFP_NOFS);
if (!req) {
rc = -ENOMEM;