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Diffstat (limited to 'fs/ocfs2/super.c')
-rw-r--r--fs/ocfs2/super.c92
1 files changed, 84 insertions, 8 deletions
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index dee0319..2c26ce2 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -94,7 +94,9 @@ struct mount_options
unsigned long mount_opt;
unsigned int atime_quantum;
signed short slot;
- unsigned int localalloc_opt;
+ int localalloc_opt;
+ unsigned int resv_level;
+ int dir_resv_level;
char cluster_stack[OCFS2_STACK_LABEL_LEN + 1];
};
@@ -176,6 +178,8 @@ enum {
Opt_noacl,
Opt_usrquota,
Opt_grpquota,
+ Opt_resv_level,
+ Opt_dir_resv_level,
Opt_err,
};
@@ -202,6 +206,8 @@ static const match_table_t tokens = {
{Opt_noacl, "noacl"},
{Opt_usrquota, "usrquota"},
{Opt_grpquota, "grpquota"},
+ {Opt_resv_level, "resv_level=%u"},
+ {Opt_dir_resv_level, "dir_resv_level=%u"},
{Opt_err, NULL}
};
@@ -932,12 +938,16 @@ static void ocfs2_disable_quotas(struct ocfs2_super *osb)
int type;
struct inode *inode;
struct super_block *sb = osb->sb;
+ struct ocfs2_mem_dqinfo *oinfo;
/* We mostly ignore errors in this function because there's not much
* we can do when we see them */
for (type = 0; type < MAXQUOTAS; type++) {
if (!sb_has_quota_loaded(sb, type))
continue;
+ /* Cancel periodic syncing before we grab dqonoff_mutex */
+ oinfo = sb_dqinfo(sb, type)->dqi_priv;
+ cancel_delayed_work_sync(&oinfo->dqi_sync_work);
inode = igrab(sb->s_dquot.files[type]);
/* Turn off quotas. This will remove all dquot structures from
* memory and so they will be automatically synced to global
@@ -1028,8 +1038,14 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
osb->s_atime_quantum = parsed_options.atime_quantum;
osb->preferred_slot = parsed_options.slot;
osb->osb_commit_interval = parsed_options.commit_interval;
- osb->local_alloc_default_bits = ocfs2_megabytes_to_clusters(sb, parsed_options.localalloc_opt);
- osb->local_alloc_bits = osb->local_alloc_default_bits;
+
+ ocfs2_la_set_sizes(osb, parsed_options.localalloc_opt);
+ osb->osb_resv_level = parsed_options.resv_level;
+ osb->osb_dir_resv_level = parsed_options.resv_level;
+ if (parsed_options.dir_resv_level == -1)
+ osb->osb_dir_resv_level = parsed_options.resv_level;
+ else
+ osb->osb_dir_resv_level = parsed_options.dir_resv_level;
status = ocfs2_verify_userspace_stack(osb, &parsed_options);
if (status)
@@ -1285,11 +1301,13 @@ static int ocfs2_parse_options(struct super_block *sb,
options ? options : "(none)");
mopt->commit_interval = 0;
- mopt->mount_opt = 0;
+ mopt->mount_opt = OCFS2_MOUNT_NOINTR;
mopt->atime_quantum = OCFS2_DEFAULT_ATIME_QUANTUM;
mopt->slot = OCFS2_INVALID_SLOT;
- mopt->localalloc_opt = OCFS2_DEFAULT_LOCAL_ALLOC_SIZE;
+ mopt->localalloc_opt = -1;
mopt->cluster_stack[0] = '\0';
+ mopt->resv_level = OCFS2_DEFAULT_RESV_LEVEL;
+ mopt->dir_resv_level = -1;
if (!options) {
status = 1;
@@ -1380,7 +1398,7 @@ static int ocfs2_parse_options(struct super_block *sb,
status = 0;
goto bail;
}
- if (option >= 0 && (option <= ocfs2_local_alloc_size(sb) * 8))
+ if (option >= 0)
mopt->localalloc_opt = option;
break;
case Opt_localflocks:
@@ -1433,6 +1451,28 @@ static int ocfs2_parse_options(struct super_block *sb,
mopt->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL;
mopt->mount_opt &= ~OCFS2_MOUNT_POSIX_ACL;
break;
+ case Opt_resv_level:
+ if (is_remount)
+ break;
+ if (match_int(&args[0], &option)) {
+ status = 0;
+ goto bail;
+ }
+ if (option >= OCFS2_MIN_RESV_LEVEL &&
+ option < OCFS2_MAX_RESV_LEVEL)
+ mopt->resv_level = option;
+ break;
+ case Opt_dir_resv_level:
+ if (is_remount)
+ break;
+ if (match_int(&args[0], &option)) {
+ status = 0;
+ goto bail;
+ }
+ if (option >= OCFS2_MIN_RESV_LEVEL &&
+ option < OCFS2_MAX_RESV_LEVEL)
+ mopt->dir_resv_level = option;
+ break;
default:
mlog(ML_ERROR,
"Unrecognized mount option \"%s\" "
@@ -1487,7 +1527,7 @@ static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt)
(unsigned) (osb->osb_commit_interval / HZ));
local_alloc_megs = osb->local_alloc_bits >> (20 - osb->s_clustersize_bits);
- if (local_alloc_megs != OCFS2_DEFAULT_LOCAL_ALLOC_SIZE)
+ if (local_alloc_megs != ocfs2_la_default_mb(osb))
seq_printf(s, ",localalloc=%d", local_alloc_megs);
if (opts & OCFS2_MOUNT_LOCALFLOCKS)
@@ -1514,6 +1554,12 @@ static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt)
else
seq_printf(s, ",noacl");
+ if (osb->osb_resv_level != OCFS2_DEFAULT_RESV_LEVEL)
+ seq_printf(s, ",resv_level=%d", osb->osb_resv_level);
+
+ if (osb->osb_dir_resv_level != osb->osb_resv_level)
+ seq_printf(s, ",dir_resv_level=%d", osb->osb_resv_level);
+
return 0;
}
@@ -1688,6 +1734,8 @@ static void ocfs2_inode_init_once(void *data)
oi->ip_blkno = 0ULL;
oi->ip_clusters = 0;
+ ocfs2_resv_init_once(&oi->ip_la_data_resv);
+
ocfs2_lock_res_init_once(&oi->ip_rw_lockres);
ocfs2_lock_res_init_once(&oi->ip_inode_lockres);
ocfs2_lock_res_init_once(&oi->ip_open_lockres);
@@ -2042,6 +2090,12 @@ static int ocfs2_initialize_super(struct super_block *sb,
init_waitqueue_head(&osb->osb_mount_event);
+ status = ocfs2_resmap_init(osb, &osb->osb_la_resmap);
+ if (status) {
+ mlog_errno(status);
+ goto bail;
+ }
+
osb->vol_label = kmalloc(OCFS2_MAX_VOL_LABEL_LEN, GFP_KERNEL);
if (!osb->vol_label) {
mlog(ML_ERROR, "unable to alloc vol label\n");
@@ -2224,9 +2278,11 @@ static int ocfs2_initialize_super(struct super_block *sb,
}
osb->bitmap_blkno = OCFS2_I(inode)->ip_blkno;
+ osb->osb_clusters_at_boot = OCFS2_I(inode)->ip_clusters;
iput(inode);
- osb->bitmap_cpg = ocfs2_group_bitmap_size(sb) * 8;
+ osb->bitmap_cpg = ocfs2_group_bitmap_size(sb, 0,
+ osb->s_feature_incompat) * 8;
status = ocfs2_init_slot_info(osb);
if (status < 0) {
@@ -2509,5 +2565,25 @@ void __ocfs2_abort(struct super_block* sb,
ocfs2_handle_error(sb);
}
+/*
+ * Void signal blockers, because in-kernel sigprocmask() only fails
+ * when SIG_* is wrong.
+ */
+void ocfs2_block_signals(sigset_t *oldset)
+{
+ int rc;
+ sigset_t blocked;
+
+ sigfillset(&blocked);
+ rc = sigprocmask(SIG_BLOCK, &blocked, oldset);
+ BUG_ON(rc);
+}
+
+void ocfs2_unblock_signals(sigset_t *oldset)
+{
+ int rc = sigprocmask(SIG_SETMASK, oldset, NULL);
+ BUG_ON(rc);
+}
+
module_init(ocfs2_init);
module_exit(ocfs2_exit);
generated by cgit v1.1 at 2024-10-30 11:32:09 +0000