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authorDavid Teigland <teigland@redhat.com>2009-11-30 23:34:43 +0100
committerDavid Teigland <teigland@redhat.com>2009-11-30 23:34:43 +0100
commit573c24c4af6664ffcd9aa7ba617a35fde2b95534 (patch)
tree9222c0c8921fda5b842c2d1007d911d47bd4fe7c /fs/dlm/memory.c
parentMerge branch 'i2c-pnx-fixes' of git://git.fluff.org/bjdooks/linux (diff)
downloadlinux-573c24c4af6664ffcd9aa7ba617a35fde2b95534.tar.xz
linux-573c24c4af6664ffcd9aa7ba617a35fde2b95534.zip
dlm: always use GFP_NOFS
Replace all GFP_KERNEL and ls_allocation with GFP_NOFS. ls_allocation would be GFP_KERNEL for userland lockspaces and GFP_NOFS for file system lockspaces. It was discovered that any lockspaces on the system can affect all others by triggering memory reclaim in the file system which could in turn call back into the dlm to acquire locks, deadlocking dlm threads that were shared by all lockspaces, like dlm_recv. Signed-off-by: David Teigland <teigland@redhat.com>
Diffstat (limited to 'fs/dlm/memory.c')
-rw-r--r--fs/dlm/memory.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/dlm/memory.c b/fs/dlm/memory.c
index c1775b84ebab..8e0d00db004f 100644
--- a/fs/dlm/memory.c
+++ b/fs/dlm/memory.c
@@ -39,7 +39,7 @@ char *dlm_allocate_lvb(struct dlm_ls *ls)
{
char *p;
- p = kzalloc(ls->ls_lvblen, ls->ls_allocation);
+ p = kzalloc(ls->ls_lvblen, GFP_NOFS);
return p;
}
@@ -57,7 +57,7 @@ struct dlm_rsb *dlm_allocate_rsb(struct dlm_ls *ls, int namelen)
DLM_ASSERT(namelen <= DLM_RESNAME_MAXLEN,);
- r = kzalloc(sizeof(*r) + namelen, ls->ls_allocation);
+ r = kzalloc(sizeof(*r) + namelen, GFP_NOFS);
return r;
}
@@ -72,7 +72,7 @@ struct dlm_lkb *dlm_allocate_lkb(struct dlm_ls *ls)
{
struct dlm_lkb *lkb;
- lkb = kmem_cache_zalloc(lkb_cache, ls->ls_allocation);
+ lkb = kmem_cache_zalloc(lkb_cache, GFP_NOFS);
return lkb;
}