aboutsummaryrefslogtreecommitdiffstats
path: root/fs/ocfs2/mmap.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-21 07:20:17 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-21 07:20:17 -0700
commit03e62303cf56e87337115f14842321043df2b4bb (patch)
tree3024495955beccddbae347d99613bcdd33801ee4 /fs/ocfs2/mmap.c
parent33cf23b0a535475aead57707cb9f4fe135a93544 (diff)
parent18d3a98f3c1b0e27ce026afa4d1ef042f2903726 (diff)
Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: (47 commits) ocfs2: Silence a gcc warning. ocfs2: Don't retry xattr set in case value extension fails. ocfs2:dlm: avoid dlm->ast_lock lockres->spinlock dependency break ocfs2: Reset xattr value size after xa_cleanup_value_truncate(). fs/ocfs2/dlm: Use kstrdup fs/ocfs2/dlm: Drop memory allocation cast Ocfs2: Optimize punching-hole code. Ocfs2: Make ocfs2_find_cpos_for_left_leaf() public. Ocfs2: Fix hole punching to correctly do CoW during cluster zeroing. Ocfs2: Optimize ocfs2 truncate to use ocfs2_remove_btree_range() instead. ocfs2: Block signals for mkdir/link/symlink/O_CREAT. ocfs2: Wrap signal blocking in void functions. ocfs2/dlm: Increase o2dlm lockres hash size ocfs2: Make ocfs2_extend_trans() really extend. ocfs2/trivial: Code cleanup for allocation reservation. ocfs2: make ocfs2_adjust_resv_from_alloc simple. ocfs2: Make nointr a default mount option ocfs2/dlm: Make o2dlm domain join/leave messages KERN_NOTICE o2net: log socket state changes ocfs2: print node # when tcp fails ...
Diffstat (limited to 'fs/ocfs2/mmap.c')
-rw-r--r--fs/ocfs2/mmap.c48
1 files changed, 9 insertions, 39 deletions
diff --git a/fs/ocfs2/mmap.c b/fs/ocfs2/mmap.c
index 7898bd3a99f..af2b8fe1f13 100644
--- a/fs/ocfs2/mmap.c
+++ b/fs/ocfs2/mmap.c
@@ -41,44 +41,20 @@
#include "file.h"
#include "inode.h"
#include "mmap.h"
+#include "super.h"
-static inline int ocfs2_vm_op_block_sigs(sigset_t *blocked, sigset_t *oldset)
-{
- /* The best way to deal with signals in the vm path is
- * to block them upfront, rather than allowing the
- * locking paths to return -ERESTARTSYS. */
- sigfillset(blocked);
-
- /* We should technically never get a bad return value
- * from sigprocmask */
- return sigprocmask(SIG_BLOCK, blocked, oldset);
-}
-
-static inline int ocfs2_vm_op_unblock_sigs(sigset_t *oldset)
-{
- return sigprocmask(SIG_SETMASK, oldset, NULL);
-}
static int ocfs2_fault(struct vm_area_struct *area, struct vm_fault *vmf)
{
- sigset_t blocked, oldset;
- int error, ret;
+ sigset_t oldset;
+ int ret;
mlog_entry("(area=%p, page offset=%lu)\n", area, vmf->pgoff);
- error = ocfs2_vm_op_block_sigs(&blocked, &oldset);
- if (error < 0) {
- mlog_errno(error);
- ret = VM_FAULT_SIGBUS;
- goto out;
- }
-
+ ocfs2_block_signals(&oldset);
ret = filemap_fault(area, vmf);
+ ocfs2_unblock_signals(&oldset);
- error = ocfs2_vm_op_unblock_sigs(&oldset);
- if (error < 0)
- mlog_errno(error);
-out:
mlog_exit_ptr(vmf->page);
return ret;
}
@@ -158,14 +134,10 @@ static int ocfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
struct page *page = vmf->page;
struct inode *inode = vma->vm_file->f_path.dentry->d_inode;
struct buffer_head *di_bh = NULL;
- sigset_t blocked, oldset;
- int ret, ret2;
+ sigset_t oldset;
+ int ret;
- ret = ocfs2_vm_op_block_sigs(&blocked, &oldset);
- if (ret < 0) {
- mlog_errno(ret);
- return ret;
- }
+ ocfs2_block_signals(&oldset);
/*
* The cluster locks taken will block a truncate from another
@@ -193,9 +165,7 @@ static int ocfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
ocfs2_inode_unlock(inode, 1);
out:
- ret2 = ocfs2_vm_op_unblock_sigs(&oldset);
- if (ret2 < 0)
- mlog_errno(ret2);
+ ocfs2_unblock_signals(&oldset);
if (ret)
ret = VM_FAULT_SIGBUS;
return ret;