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| author | KaiGai Kohei <kaigai@ak.jp.nec.com> | 2006-06-24 09:16:50 +0900 |
|---|---|---|
| committer | David Woodhouse <dwmw2@infradead.org> | 2006-06-27 16:19:06 +0100 |
| commit | 2c887e2359f6e7217cdaa17994ca94ef328b658f (patch) | |
| tree | 4af246384893ec0b18380aacb97cc0f2a0226ec8 /fs/jffs2/xattr.h | |
| parent | 355ed4e141203fd7266ef9d90d57be0c61bd1aa4 (diff) | |
| download | op-kernel-dev-2c887e2359f6e7217cdaa17994ca94ef328b658f.zip op-kernel-dev-2c887e2359f6e7217cdaa17994ca94ef328b658f.tar.gz | |
[JFFS2][XATTR] Re-define xd->refcnt as atomic_t
In jffs2_release_xattr_datum(), it refers xd->refcnt to ensure
whether releasing xd is allowed or not.
But we can't hold xattr_sem since this function is called under
spin_lock(&c->erase_completion_lock). Thus we have to refer it
without any locking.
This patch redefine xd->refcnt as atomic_t. It enables to refer
xd->refcnt without any locking.
Signed-off-by: KaiGai Kohei <kaigai@ak.jp.nec.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'fs/jffs2/xattr.h')
| -rw-r--r-- | fs/jffs2/xattr.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/jffs2/xattr.h b/fs/jffs2/xattr.h index 4a10abc..06a5c69 100644 --- a/fs/jffs2/xattr.h +++ b/fs/jffs2/xattr.h @@ -28,7 +28,7 @@ struct jffs2_xattr_datum uint16_t xprefix; /* see JFFS2_XATTR_PREFIX_* */ struct list_head xindex; /* chained from c->xattrindex[n] */ - uint32_t refcnt; /* # of xattr_ref refers this */ + atomic_t refcnt; /* # of xattr_ref refers this */ uint32_t xid; uint32_t version; |
