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| author | Michal Hocko | 2016-03-13 22:38:20 +0100 |
|---|---|---|
| committer | Theodore Ts'o | 2016-03-13 22:38:20 +0100 |
| commit | 490c1b444ce653d0784a9a5fa4d11287029feeb9 (patch) | |
| tree | bfa4ea6dbd329899257c725a017ec01c82dc09d0 /fs/ext4/mmp.c | |
| parent | ext4: use __GFP_NOFAIL in ext4_free_blocks() (diff) | |
| download | kernel-qcow2-linux-490c1b444ce653d0784a9a5fa4d11287029feeb9.tar.gz kernel-qcow2-linux-490c1b444ce653d0784a9a5fa4d11287029feeb9.tar.xz kernel-qcow2-linux-490c1b444ce653d0784a9a5fa4d11287029feeb9.zip | |
jbd2: do not fail journal because of frozen_buffer allocation failure
Journal transaction might fail prematurely because the frozen_buffer
is allocated by GFP_NOFS request:
[ 72.440013] do_get_write_access: OOM for frozen_buffer
[ 72.440014] EXT4-fs: ext4_reserve_inode_write:4729: aborting transaction: Out of memory in __ext4_journal_get_write_access
[ 72.440015] EXT4-fs error (device sda1) in ext4_reserve_inode_write:4735: Out of memory
(...snipped....)
[ 72.495559] do_get_write_access: OOM for frozen_buffer
[ 72.495560] EXT4-fs: ext4_reserve_inode_write:4729: aborting transaction: Out of memory in __ext4_journal_get_write_access
[ 72.496839] do_get_write_access: OOM for frozen_buffer
[ 72.496841] EXT4-fs: ext4_reserve_inode_write:4729: aborting transaction: Out of memory in __ext4_journal_get_write_access
[ 72.505766] Aborting journal on device sda1-8.
[ 72.505851] EXT4-fs (sda1): Remounting filesystem read-only
This wasn't a problem until "mm: page_alloc: do not lock up GFP_NOFS
allocations upon OOM" because small GPF_NOFS allocations never failed.
This allocation seems essential for the journal and GFP_NOFS is too
restrictive to the memory allocator so let's use __GFP_NOFAIL here to
emulate the previous behavior.
Signed-off-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/mmp.c')
0 files changed, 0 insertions, 0 deletions