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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-21 10:50:28 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-21 10:50:28 -0700
commit7ce1418f95e918cfc5ad36e3ec3431145c768cd0 (patch)
tree10fd5bf66a5d0cb71cbf0ffb17b354969a7cc4c4 /include
parenta6f039869ff87e0a8d621e31d14bbb120c1dfa93 (diff)
parent1907131bbeabb33db313bad34f3ec1a5faedbd64 (diff)
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6: (31 commits) dquot: Detect partial write error to quota file in write_blk() and add printk_ratelimit for quota error messages ocfs2: Fix lock inversion in quotas during umount ocfs2: Use __dquot_transfer to avoid lock inversion ocfs2: Fix NULL pointer deref when writing local dquot ocfs2: Fix estimate of credits needed for quota allocation ocfs2: Fix quota locking ocfs2: Avoid unnecessary block mapping when refreshing quota info ocfs2: Do not map blocks from local quota file on each write quota: Refactor dquot_transfer code so that OCFS2 can pass in its references quota: unify quota init condition in setattr quota: remove sb_has_quota_active in get/set_info quota: unify ->set_dqblk quota: unify ->get_dqblk ext3: make barrier options consistent with ext4 quota: Make quota stat accounting lockless. suppress warning: "quotatypes" defined but not used ext3: Fix waiting on transaction during fsync jbd: Provide function to check whether transaction will issue data barrier ufs: add ufs speciffic ->setattr call BKL: Remove BKL from ext2 filesystem ...
Diffstat (limited to 'include')
-rw-r--r--include/linux/dqblk_xfs.h9
-rw-r--r--include/linux/ext2_fs_sb.h9
-rw-r--r--include/linux/jbd.h3
-rw-r--r--include/linux/quota.h48
-rw-r--r--include/linux/quotaops.h15
5 files changed, 69 insertions, 15 deletions
diff --git a/include/linux/dqblk_xfs.h b/include/linux/dqblk_xfs.h
index 527504c11c5e..4389ae72024e 100644
--- a/include/linux/dqblk_xfs.h
+++ b/include/linux/dqblk_xfs.h
@@ -110,6 +110,15 @@ typedef struct fs_disk_quota {
#define FS_DQ_WARNS_MASK (FS_DQ_BWARNS | FS_DQ_IWARNS | FS_DQ_RTBWARNS)
/*
+ * Accounting values. These can only be set for filesystem with
+ * non-transactional quotas that require quotacheck(8) in userspace.
+ */
+#define FS_DQ_BCOUNT (1<<12)
+#define FS_DQ_ICOUNT (1<<13)
+#define FS_DQ_RTBCOUNT (1<<14)
+#define FS_DQ_ACCT_MASK (FS_DQ_BCOUNT | FS_DQ_ICOUNT | FS_DQ_RTBCOUNT)
+
+/*
* Various flags related to quotactl(2). Only relevant to XFS filesystems.
*/
#define XFS_QUOTA_UDQ_ACCT (1<<0) /* user quota accounting */
diff --git a/include/linux/ext2_fs_sb.h b/include/linux/ext2_fs_sb.h
index 1cdb66367c98..db4d9f586bb6 100644
--- a/include/linux/ext2_fs_sb.h
+++ b/include/linux/ext2_fs_sb.h
@@ -106,6 +106,15 @@ struct ext2_sb_info {
spinlock_t s_rsv_window_lock;
struct rb_root s_rsv_window_root;
struct ext2_reserve_window_node s_rsv_window_head;
+ /*
+ * s_lock protects against concurrent modifications of s_mount_state,
+ * s_blocks_last, s_overhead_last and the content of superblock's
+ * buffer pointed to by sbi->s_es.
+ *
+ * Note: It is used in ext2_show_options() to provide a consistent view
+ * of the mount options.
+ */
+ spinlock_t s_lock;
};
static inline spinlock_t *
diff --git a/include/linux/jbd.h b/include/linux/jbd.h
index 516a2a27e87a..e06965081ba5 100644
--- a/include/linux/jbd.h
+++ b/include/linux/jbd.h
@@ -427,9 +427,9 @@ struct transaction_s
enum {
T_RUNNING,
T_LOCKED,
- T_RUNDOWN,
T_FLUSH,
T_COMMIT,
+ T_COMMIT_RECORD,
T_FINISHED
} t_state;
@@ -991,6 +991,7 @@ int journal_start_commit(journal_t *journal, tid_t *tid);
int journal_force_commit_nested(journal_t *journal);
int log_wait_commit(journal_t *journal, tid_t tid);
int log_do_checkpoint(journal_t *journal);
+int journal_trans_will_send_data_barrier(journal_t *journal, tid_t tid);
void __log_wait_for_space(journal_t *journal);
extern void __journal_drop_transaction(journal_t *, transaction_t *);
diff --git a/include/linux/quota.h b/include/linux/quota.h
index b462916b2a0a..7126a15467f1 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -174,6 +174,8 @@ enum {
#include <linux/rwsem.h>
#include <linux/spinlock.h>
#include <linux/wait.h>
+#include <linux/percpu.h>
+#include <linux/smp.h>
#include <linux/dqblk_xfs.h>
#include <linux/dqblk_v1.h>
@@ -238,19 +240,43 @@ static inline int info_dirty(struct mem_dqinfo *info)
return test_bit(DQF_INFO_DIRTY_B, &info->dqi_flags);
}
+enum {
+ DQST_LOOKUPS,
+ DQST_DROPS,
+ DQST_READS,
+ DQST_WRITES,
+ DQST_CACHE_HITS,
+ DQST_ALLOC_DQUOTS,
+ DQST_FREE_DQUOTS,
+ DQST_SYNCS,
+ _DQST_DQSTAT_LAST
+};
+
struct dqstats {
- int lookups;
- int drops;
- int reads;
- int writes;
- int cache_hits;
- int allocated_dquots;
- int free_dquots;
- int syncs;
+ int stat[_DQST_DQSTAT_LAST];
};
+extern struct dqstats *dqstats_pcpu;
extern struct dqstats dqstats;
+static inline void dqstats_inc(unsigned int type)
+{
+#ifdef CONFIG_SMP
+ per_cpu_ptr(dqstats_pcpu, smp_processor_id())->stat[type]++;
+#else
+ dqstats.stat[type]++;
+#endif
+}
+
+static inline void dqstats_dec(unsigned int type)
+{
+#ifdef CONFIG_SMP
+ per_cpu_ptr(dqstats_pcpu, smp_processor_id())->stat[type]--;
+#else
+ dqstats.stat[type]--;
+#endif
+}
+
#define DQ_MOD_B 0 /* dquot modified since read */
#define DQ_BLKS_B 1 /* uid/gid has been warned about blk limit */
#define DQ_INODES_B 2 /* uid/gid has been warned about inode limit */
@@ -311,12 +337,10 @@ struct quotactl_ops {
int (*quota_sync)(struct super_block *, int, int);
int (*get_info)(struct super_block *, int, struct if_dqinfo *);
int (*set_info)(struct super_block *, int, struct if_dqinfo *);
- int (*get_dqblk)(struct super_block *, int, qid_t, struct if_dqblk *);
- int (*set_dqblk)(struct super_block *, int, qid_t, struct if_dqblk *);
+ int (*get_dqblk)(struct super_block *, int, qid_t, struct fs_disk_quota *);
+ int (*set_dqblk)(struct super_block *, int, qid_t, struct fs_disk_quota *);
int (*get_xstate)(struct super_block *, struct fs_quota_stat *);
int (*set_xstate)(struct super_block *, unsigned int, int);
- int (*get_xquota)(struct super_block *, int, qid_t, struct fs_disk_quota *);
- int (*set_xquota)(struct super_block *, int, qid_t, struct fs_disk_quota *);
};
struct quota_format_type {
diff --git a/include/linux/quotaops.h b/include/linux/quotaops.h
index e6fa7acce290..370abb1e99cb 100644
--- a/include/linux/quotaops.h
+++ b/include/linux/quotaops.h
@@ -14,6 +14,14 @@ static inline struct quota_info *sb_dqopt(struct super_block *sb)
return &sb->s_dquot;
}
+/* i_mutex must being held */
+static inline bool is_quota_modification(struct inode *inode, struct iattr *ia)
+{
+ return (ia->ia_valid & ATTR_SIZE && ia->ia_size != inode->i_size) ||
+ (ia->ia_valid & ATTR_UID && ia->ia_uid != inode->i_uid) ||
+ (ia->ia_valid & ATTR_GID && ia->ia_gid != inode->i_gid);
+}
+
#if defined(CONFIG_QUOTA)
/*
@@ -63,9 +71,12 @@ int vfs_quota_disable(struct super_block *sb, int type, unsigned int flags);
int vfs_quota_sync(struct super_block *sb, int type, int wait);
int vfs_get_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii);
int vfs_set_dqinfo(struct super_block *sb, int type, struct if_dqinfo *ii);
-int vfs_get_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di);
-int vfs_set_dqblk(struct super_block *sb, int type, qid_t id, struct if_dqblk *di);
+int vfs_get_dqblk(struct super_block *sb, int type, qid_t id,
+ struct fs_disk_quota *di);
+int vfs_set_dqblk(struct super_block *sb, int type, qid_t id,
+ struct fs_disk_quota *di);
+int __dquot_transfer(struct inode *inode, struct dquot **transfer_to);
int dquot_transfer(struct inode *inode, struct iattr *iattr);
int vfs_dq_quota_on_remount(struct super_block *sb);