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| author | David Sterba <dsterba@suse.com> | 2017-05-31 19:21:38 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2017-06-19 18:26:02 +0200 |
| commit | de2491fdefe7e599fa08a81a1b89d03c96c9cbc3 (patch) | |
| tree | b3fd451798e685ab306e10bbc842303d7aecace0 /fs/btrfs/ioctl.c | |
| parent | btrfs: send: use kvmalloc in iterate_dir_item (diff) | |
| download | linux-de2491fdefe7e599fa08a81a1b89d03c96c9cbc3.tar.xz linux-de2491fdefe7e599fa08a81a1b89d03c96c9cbc3.zip | |
btrfs: scrub: add memalloc_nofs protection around init_ipath
init_ipath is called from a safe ioctl context and from scrub when
printing an error. The protection is added for three reasons:
* init_data_container calls vmalloc and this does not work as expected
in the GFP_NOFS context, so this silently does GFP_KERNEL and might
deadlock in some cases
* keep the context constraint of GFP_NOFS, used by scrub
* we want to use GFP_KERNEL unconditionally inside init_ipath or its
callees
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/ioctl.c')
0 files changed, 0 insertions, 0 deletions