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authorNiu Yawei <yawei.niu@gmail.com>2014-06-04 08:23:19 +0400
committerJan Kara <jack@suse.cz>2014-07-16 00:40:22 +0400
commitb9ba6f94b2382ef832f97122976b73004f714714 (patch)
tree29bab149a28538c9a7f97aae52a78aec0c2ee3b5 /include/linux/quota.h
parent9eb6463f31cf720deaf0e810cacc403d7720b10c (diff)
downloadlinux-b9ba6f94b2382ef832f97122976b73004f714714.tar.xz
quota: remove dqptr_sem
Remove dqptr_sem to make quota code scalable: Remove the dqptr_sem, accessing inode->i_dquot now protected by dquot_srcu, and changing inode->i_dquot is now serialized by dq_data_lock. Signed-off-by: Lai Siyao <lai.siyao@intel.com> Signed-off-by: Niu Yawei <yawei.niu@intel.com> Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'include/linux/quota.h')
-rw-r--r--include/linux/quota.h1
1 files changed, 0 insertions, 1 deletions
diff --git a/include/linux/quota.h b/include/linux/quota.h
index 0f3c5d38da1f..80d345a3524c 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -390,7 +390,6 @@ struct quota_info {
unsigned int flags; /* Flags for diskquotas on this device */
struct mutex dqio_mutex; /* lock device while I/O in progress */
struct mutex dqonoff_mutex; /* Serialize quotaon & quotaoff */
- struct rw_semaphore dqptr_sem; /* serialize ops using quota_info struct, pointers from inode to dquots */
struct inode *files[MAXQUOTAS]; /* inodes of quotafiles */
struct mem_dqinfo info[MAXQUOTAS]; /* Information for each quota type */
const struct quota_format_ops *ops[MAXQUOTAS]; /* Operations for each type */