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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2009-09-10 05:34:50 +0200 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2009-09-10 05:34:50 +0200 |
| commit | f41c0750538667b87a19c93952e5d42fcc069bd7 (patch) | |
| tree | 042076950064d1201e7e408aba0e96ccbd7e00e2 /kernel/cgroup.c | |
| parent | ext4: move ext4_mb_init_group() function earlier in the mballoc.c (diff) | |
| download | linux-f41c0750538667b87a19c93952e5d42fcc069bd7.tar.xz linux-f41c0750538667b87a19c93952e5d42fcc069bd7.zip | |
ext4: check for need init flag in ext4_mb_load_buddy
We should check for need init flag with the group's alloc_sem held, to
make sure while we are loading the buddy cache and holding a reference
to it, a file system resize can't add new blocks to same group.
The patch also drops the need init flag check in
ext4_mb_regular_allocator() because doing the check without holding
alloc_sem is racy.
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/cgroup.c')
0 files changed, 0 insertions, 0 deletions