diff options
| author | Dave Airlie <airlied@redhat.com> | 2015-06-04 09:23:51 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2015-06-04 09:23:51 +1000 |
| commit | a8a50fce60e86f82e442bf84b8af20750b3d6105 (patch) | |
| tree | 974c04f9f4f10275a8a9435113ea5b307d172bb6 /fs/xfs/libxfs/xfs_ialloc.c | |
| parent | 9b5edbf7a462b7c846e9d4675b9b72b7a4e84de9 (diff) | |
| parent | c65b99f046843d2455aa231747b5a07a999a9f3d (diff) | |
Merge tag 'v4.1-rc6' into drm-next
Linux 4.1-rc6
backmerge 4.1-rc6 as some of the later pull reqs are based on newer bases
and I'd prefer to do the fixup myself.
Diffstat (limited to 'fs/xfs/libxfs/xfs_ialloc.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_ialloc.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/xfs/libxfs/xfs_ialloc.c b/fs/xfs/libxfs/xfs_ialloc.c index 07349a183a11..1c9e75521250 100644 --- a/fs/xfs/libxfs/xfs_ialloc.c +++ b/fs/xfs/libxfs/xfs_ialloc.c @@ -376,7 +376,7 @@ xfs_ialloc_ag_alloc( */ newlen = args.mp->m_ialloc_inos; if (args.mp->m_maxicount && - percpu_counter_read(&args.mp->m_icount) + newlen > + percpu_counter_read_positive(&args.mp->m_icount) + newlen > args.mp->m_maxicount) return -ENOSPC; args.minlen = args.maxlen = args.mp->m_ialloc_blks; @@ -1339,10 +1339,13 @@ xfs_dialloc( * If we have already hit the ceiling of inode blocks then clear * okalloc so we scan all available agi structures for a free * inode. + * + * Read rough value of mp->m_icount by percpu_counter_read_positive, + * which will sacrifice the preciseness but improve the performance. */ if (mp->m_maxicount && - percpu_counter_read(&mp->m_icount) + mp->m_ialloc_inos > - mp->m_maxicount) { + percpu_counter_read_positive(&mp->m_icount) + mp->m_ialloc_inos + > mp->m_maxicount) { noroom = 1; okalloc = 0; } |