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authorTao Ma <boyu.mt@taobao.com>2010-12-15 16:30:00 +0800
committerJoel Becker <joel.becker@oracle.com>2010-12-16 00:36:15 -0800
commit8ac33dc86d37ca76d282aa112d4f2794a731064e (patch)
tree1631d3643087ebb52da9eb8ec084e7191ab20e75 /fs/ocfs2/dir.c
parent41b41a26d4d6e4e3ad877d02377844ab9552dc16 (diff)
downloadtalos-op-linux-8ac33dc86d37ca76d282aa112d4f2794a731064e.tar.gz
talos-op-linux-8ac33dc86d37ca76d282aa112d4f2794a731064e.zip
ocfs2: Hold ip_lock when set/clear flags for indexed dir.
When we set/clear the dyn_features for an inode we hold the ip_lock. So do it when we set/clear OCFS2_INDEXED_DIR_FL also. Signed-off-by: Tao Ma <boyu.mt@taobao.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
Diffstat (limited to 'fs/ocfs2/dir.c')
-rw-r--r--fs/ocfs2/dir.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index c49f6de0e7ab..d417b3f9b0c7 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -2461,8 +2461,10 @@ static int ocfs2_dx_dir_attach_index(struct ocfs2_super *osb,
di->i_dx_root = cpu_to_le64(dr_blkno);
+ spin_lock(&OCFS2_I(dir)->ip_lock);
OCFS2_I(dir)->ip_dyn_features |= OCFS2_INDEXED_DIR_FL;
di->i_dyn_features = cpu_to_le16(OCFS2_I(dir)->ip_dyn_features);
+ spin_unlock(&OCFS2_I(dir)->ip_lock);
ocfs2_journal_dirty(handle, di_bh);
@@ -4466,8 +4468,10 @@ static int ocfs2_dx_dir_remove_index(struct inode *dir,
goto out_commit;
}
+ spin_lock(&OCFS2_I(dir)->ip_lock);
OCFS2_I(dir)->ip_dyn_features &= ~OCFS2_INDEXED_DIR_FL;
di->i_dyn_features = cpu_to_le16(OCFS2_I(dir)->ip_dyn_features);
+ spin_unlock(&OCFS2_I(dir)->ip_lock);
di->i_dx_root = cpu_to_le64(0ULL);
ocfs2_journal_dirty(handle, di_bh);
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