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| author | Adam Litke <agl@us.ibm.com> | 2007-11-14 16:59:41 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-11-14 18:45:40 -0800 |
| commit | 9a119c056dc2a9970901954a6d561d50a95e528d (patch) | |
| tree | 22ca1f97f18f8a788757825bd4623d52d97a5abb /fs/hugetlbfs | |
| parent | 2fc39cec6a9b5b41727d3386b780b69422a15152 (diff) | |
| download | linux-9a119c056dc2a9970901954a6d561d50a95e528d.tar.gz linux-9a119c056dc2a9970901954a6d561d50a95e528d.tar.bz2 linux-9a119c056dc2a9970901954a6d561d50a95e528d.zip | |
hugetlb: allow bulk updating in hugetlb_*_quota()
Add a second parameter 'delta' to hugetlb_get_quota and hugetlb_put_quota to
allow bulk updating of the sbinfo->free_blocks counter. This will be used by
the next patch in the series.
Signed-off-by: Adam Litke <agl@us.ibm.com>
Cc: Ken Chen <kenchen@google.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Cc: Dave Hansen <haveblue@us.ibm.com>
Cc: David Gibson <hermes@gibson.dropbear.id.au>
Cc: William Lee Irwin III <wli@holomorphy.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/hugetlbfs')
| -rw-r--r-- | fs/hugetlbfs/inode.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 6513f5655861..09ee07f02663 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -858,15 +858,15 @@ out_free: return -ENOMEM; } -int hugetlb_get_quota(struct address_space *mapping) +int hugetlb_get_quota(struct address_space *mapping, long delta) { int ret = 0; struct hugetlbfs_sb_info *sbinfo = HUGETLBFS_SB(mapping->host->i_sb); if (sbinfo->free_blocks > -1) { spin_lock(&sbinfo->stat_lock); - if (sbinfo->free_blocks > 0) - sbinfo->free_blocks--; + if (sbinfo->free_blocks - delta >= 0) + sbinfo->free_blocks -= delta; else ret = -ENOMEM; spin_unlock(&sbinfo->stat_lock); @@ -875,13 +875,13 @@ int hugetlb_get_quota(struct address_space *mapping) return ret; } -void hugetlb_put_quota(struct address_space *mapping) +void hugetlb_put_quota(struct address_space *mapping, long delta) { struct hugetlbfs_sb_info *sbinfo = HUGETLBFS_SB(mapping->host->i_sb); if (sbinfo->free_blocks > -1) { spin_lock(&sbinfo->stat_lock); - sbinfo->free_blocks++; + sbinfo->free_blocks += delta; spin_unlock(&sbinfo->stat_lock); } } |