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| author | Steven Whitehouse <swhiteho@redhat.com> | 2012-10-31 10:37:10 +0000 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2012-11-07 13:33:17 +0000 |
| commit | 9dbe9610b9df4efe0946299804ed46bb8f91dec2 (patch) | |
| tree | 8d54797420ed9d0aef1c6bdd8f3b8dd5e9938d0a /fs/gfs2/file.c | |
| parent | c9aecf73717f55e41ac11682a50bef8594547025 (diff) | |
| download | linux-9dbe9610b9df4efe0946299804ed46bb8f91dec2.tar.bz2 | |
GFS2: Add Orlov allocator
Just like ext3, this works on the root directory and any directory
with the +T flag set. Also, just like ext3, any subdirectory created
in one of the just mentioned cases will be allocated to a random
resource group (GFS2 equivalent of a block group).
If you are creating a set of directories, each of which will contain a
job running on a different node, then by setting +T on the parent
directory before creating the subdirectories, each will land up in a
different resource group, and thus resource group contention between
nodes will be kept to a minimum.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/file.c')
| -rw-r--r-- | fs/gfs2/file.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c index e056b4ce4877..dfe2d8cb9b2c 100644 --- a/fs/gfs2/file.c +++ b/fs/gfs2/file.c @@ -432,7 +432,7 @@ static int gfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) if (ret) goto out_unlock; gfs2_write_calc_reserv(ip, PAGE_CACHE_SIZE, &data_blocks, &ind_blocks); - ret = gfs2_inplace_reserve(ip, data_blocks + ind_blocks); + ret = gfs2_inplace_reserve(ip, data_blocks + ind_blocks, 0); if (ret) goto out_quota_unlock; @@ -825,7 +825,7 @@ static long gfs2_fallocate(struct file *file, int mode, loff_t offset, retry: gfs2_write_calc_reserv(ip, bytes, &data_blocks, &ind_blocks); - error = gfs2_inplace_reserve(ip, data_blocks + ind_blocks); + error = gfs2_inplace_reserve(ip, data_blocks + ind_blocks, 0); if (error) { if (error == -ENOSPC && bytes > sdp->sd_sb.sb_bsize) { bytes >>= 1; |