btrfs: fix several uncheck memory allocations
authorliubo <liubo2009@cn.fujitsu.com>
Wed, 26 Jan 2011 06:22:08 +0000 (06:22 +0000)
committerChris Mason <chris.mason@oracle.com>
Fri, 28 Jan 2011 21:40:36 +0000 (16:40 -0500)
commit2a29edc6b60a5248ccab588e7ba7dad38cef0235
tree45a7939e9e061cb2f06b09ae5f48aa79853e1250
parent6b82ce8d824bd46053e46a895876cde39d9026e4
btrfs: fix several uncheck memory allocations

To make btrfs more stable, add several missing necessary memory allocation
checks, and when no memory, return proper errno.

We've checked that some of those -ENOMEM errors will be returned to
userspace, and some will be catched by BUG_ON() in the upper callers,
and none will be ignored silently.

Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
fs/btrfs/export.c
fs/btrfs/file-item.c
fs/btrfs/file.c
fs/btrfs/tree-log.c