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ocfs2: Add extended attribute support

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This patch implements storing extended attributes both in inode or a single
external block. We only store EA's in-inode when blocksize > 512 or that
inode block has free space for it. When an EA's value is larger than 80
bytes, we will store the value via b-tree outside inode or block.

Signed-off-by: Tiger Yang <tiger.yang@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
This commit is contained in:
Tiger Yang
2008-08-18 17:11:00 +08:00
committed by Mark Fasheh
parent fdd77704a8
commit cf1d6c763f
16 changed files with 1927 additions and 6 deletions
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3
fs/ocfs2/inode.h
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@@ -40,6 +40,9 @@ struct ocfs2_inode_info
/* protects allocation changes on this inode. */
struct rw_semaphore ip_alloc_sem;
/* protects extended attribute changes on this inode */
struct rw_semaphore ip_xattr_sem;
/* These fields are protected by ip_lock */
spinlock_t ip_lock;
u32 ip_open_count;