aboutsummaryrefslogtreecommitdiff
path: root/fs
diff options
context:
space:
mode:
Diffstat (limited to 'fs')
-rw-r--r--fs/ext4/balloc.c17
-rw-r--r--fs/ext4/mballoc.c66
-rw-r--r--fs/ext4/super.c80
-rw-r--r--fs/jbd2/commit.c2
4 files changed, 116 insertions, 49 deletions
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index da994374ec3b..30494c5da843 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -287,11 +287,11 @@ read_block_bitmap(struct super_block *sb, ext4_group_t block_group)
(int)block_group, (unsigned long long)bitmap_blk);
return NULL;
}
- if (!ext4_valid_block_bitmap(sb, desc, block_group, bh)) {
- put_bh(bh);
- return NULL;
- }
-
+ ext4_valid_block_bitmap(sb, desc, block_group, bh);
+ /*
+ * file system mounted not to panic on error,
+ * continue with corrupt bitmap
+ */
return bh;
}
/*
@@ -1770,7 +1770,12 @@ allocated:
"Allocating block in system zone - "
"blocks from %llu, length %lu",
ret_block, num);
- goto out;
+ /*
+ * claim_block marked the blocks we allocated
+ * as in use. So we may want to selectively
+ * mark some of the blocks as free
+ */
+ goto retry_alloc;
}
performed_allocation = 1;
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index b128bdc0f55c..873ad9b3418c 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2736,7 +2736,7 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
struct ext4_sb_info *sbi;
struct super_block *sb;
ext4_fsblk_t block;
- int err;
+ int err, len;
BUG_ON(ac->ac_status != AC_STATUS_FOUND);
BUG_ON(ac->ac_b_ex.fe_len <= 0);
@@ -2770,14 +2770,27 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
+ ac->ac_b_ex.fe_start
+ le32_to_cpu(es->s_first_data_block);
- if (block == ext4_block_bitmap(sb, gdp) ||
- block == ext4_inode_bitmap(sb, gdp) ||
- in_range(block, ext4_inode_table(sb, gdp),
- EXT4_SB(sb)->s_itb_per_group)) {
-
+ len = ac->ac_b_ex.fe_len;
+ if (in_range(ext4_block_bitmap(sb, gdp), block, len) ||
+ in_range(ext4_inode_bitmap(sb, gdp), block, len) ||
+ in_range(block, ext4_inode_table(sb, gdp),
+ EXT4_SB(sb)->s_itb_per_group) ||
+ in_range(block + len - 1, ext4_inode_table(sb, gdp),
+ EXT4_SB(sb)->s_itb_per_group)) {
ext4_error(sb, __func__,
"Allocating block in system zone - block = %llu",
block);
+ /* File system mounted not to panic on error
+ * Fix the bitmap and repeat the block allocation
+ * We leak some of the blocks here.
+ */
+ mb_set_bits(sb_bgl_lock(sbi, ac->ac_b_ex.fe_group),
+ bitmap_bh->b_data, ac->ac_b_ex.fe_start,
+ ac->ac_b_ex.fe_len);
+ err = ext4_journal_dirty_metadata(handle, bitmap_bh);
+ if (!err)
+ err = -EAGAIN;
+ goto out_err;
}
#ifdef AGGRESSIVE_CHECK
{
@@ -2880,12 +2893,11 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac,
if (size < i_size_read(ac->ac_inode))
size = i_size_read(ac->ac_inode);
- /* max available blocks in a free group */
- max = EXT4_BLOCKS_PER_GROUP(ac->ac_sb) - 1 - 1 -
- EXT4_SB(ac->ac_sb)->s_itb_per_group;
+ /* max size of free chunks */
+ max = 2 << bsbits;
-#define NRL_CHECK_SIZE(req, size, max,bits) \
- (req <= (size) || max <= ((size) >> bits))
+#define NRL_CHECK_SIZE(req, size, max, chunk_size) \
+ (req <= (size) || max <= (chunk_size))
/* first, try to predict filesize */
/* XXX: should this table be tunable? */
@@ -2904,16 +2916,16 @@ ext4_mb_normalize_request(struct ext4_allocation_context *ac,
size = 512 * 1024;
} else if (size <= 1024 * 1024) {
size = 1024 * 1024;
- } else if (NRL_CHECK_SIZE(size, 4 * 1024 * 1024, max, bsbits)) {
+ } else if (NRL_CHECK_SIZE(size, 4 * 1024 * 1024, max, 2 * 1024)) {
start_off = ((loff_t)ac->ac_o_ex.fe_logical >>
- (20 - bsbits)) << 20;
- size = 1024 * 1024;
- } else if (NRL_CHECK_SIZE(size, 8 * 1024 * 1024, max, bsbits)) {
+ (21 - bsbits)) << 21;
+ size = 2 * 1024 * 1024;
+ } else if (NRL_CHECK_SIZE(size, 8 * 1024 * 1024, max, 4 * 1024)) {
start_off = ((loff_t)ac->ac_o_ex.fe_logical >>
(22 - bsbits)) << 22;
size = 4 * 1024 * 1024;
} else if (NRL_CHECK_SIZE(ac->ac_o_ex.fe_len,
- (8<<20)>>bsbits, max, bsbits)) {
+ (8<<20)>>bsbits, max, 8 * 1024)) {
start_off = ((loff_t)ac->ac_o_ex.fe_logical >>
(23 - bsbits)) << 23;
size = 8 * 1024 * 1024;
@@ -4033,7 +4045,6 @@ ext4_fsblk_t ext4_mb_new_blocks(handle_t *handle,
ac->ac_op = EXT4_MB_HISTORY_ALLOC;
ext4_mb_normalize_request(ac, ar);
-
repeat:
/* allocate space in core */
ext4_mb_regular_allocator(ac);
@@ -4047,10 +4058,21 @@ repeat:
}
if (likely(ac->ac_status == AC_STATUS_FOUND)) {
- ext4_mb_mark_diskspace_used(ac, handle);
- *errp = 0;
- block = ext4_grp_offs_to_block(sb, &ac->ac_b_ex);
- ar->len = ac->ac_b_ex.fe_len;
+ *errp = ext4_mb_mark_diskspace_used(ac, handle);
+ if (*errp == -EAGAIN) {
+ ac->ac_b_ex.fe_group = 0;
+ ac->ac_b_ex.fe_start = 0;
+ ac->ac_b_ex.fe_len = 0;
+ ac->ac_status = AC_STATUS_CONTINUE;
+ goto repeat;
+ } else if (*errp) {
+ ac->ac_b_ex.fe_len = 0;
+ ar->len = 0;
+ ext4_mb_show_ac(ac);
+ } else {
+ block = ext4_grp_offs_to_block(sb, &ac->ac_b_ex);
+ ar->len = ac->ac_b_ex.fe_len;
+ }
} else {
freed = ext4_mb_discard_preallocations(sb, ac->ac_o_ex.fe_len);
if (freed)
@@ -4237,6 +4259,8 @@ do_more:
ext4_error(sb, __func__,
"Freeing blocks in system zone - "
"Block = %lu, count = %lu", block, count);
+ /* err = 0. ext4_std_error should be a no op */
+ goto error_return;
}
BUFFER_TRACE(bitmap_bh, "getting write access");
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 52dd0679a4e2..09d9359c8055 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -979,7 +979,7 @@ static int parse_options (char *options, struct super_block *sb,
int data_opt = 0;
int option;
#ifdef CONFIG_QUOTA
- int qtype;
+ int qtype, qfmt;
char *qname;
#endif
@@ -1162,9 +1162,11 @@ static int parse_options (char *options, struct super_block *sb,
case Opt_grpjquota:
qtype = GRPQUOTA;
set_qf_name:
- if (sb_any_quota_enabled(sb)) {
+ if ((sb_any_quota_enabled(sb) ||
+ sb_any_quota_suspended(sb)) &&
+ !sbi->s_qf_names[qtype]) {
printk(KERN_ERR
- "EXT4-fs: Cannot change journalled "
+ "EXT4-fs: Cannot change journaled "
"quota options when quota turned on.\n");
return 0;
}
@@ -1200,9 +1202,11 @@ set_qf_name:
case Opt_offgrpjquota:
qtype = GRPQUOTA;
clear_qf_name:
- if (sb_any_quota_enabled(sb)) {
+ if ((sb_any_quota_enabled(sb) ||
+ sb_any_quota_suspended(sb)) &&
+ sbi->s_qf_names[qtype]) {
printk(KERN_ERR "EXT4-fs: Cannot change "
- "journalled quota options when "
+ "journaled quota options when "
"quota turned on.\n");
return 0;
}
@@ -1213,10 +1217,20 @@ clear_qf_name:
sbi->s_qf_names[qtype] = NULL;
break;
case Opt_jqfmt_vfsold:
- sbi->s_jquota_fmt = QFMT_VFS_OLD;
- break;
+ qfmt = QFMT_VFS_OLD;
+ goto set_qf_format;
case Opt_jqfmt_vfsv0:
- sbi->s_jquota_fmt = QFMT_VFS_V0;
+ qfmt = QFMT_VFS_V0;
+set_qf_format:
+ if ((sb_any_quota_enabled(sb) ||
+ sb_any_quota_suspended(sb)) &&
+ sbi->s_jquota_fmt != qfmt) {
+ printk(KERN_ERR "EXT4-fs: Cannot change "
+ "journaled quota options when "
+ "quota turned on.\n");
+ return 0;
+ }
+ sbi->s_jquota_fmt = qfmt;
break;
case Opt_quota:
case Opt_usrquota:
@@ -1241,6 +1255,9 @@ clear_qf_name:
case Opt_quota:
case Opt_usrquota:
case Opt_grpquota:
+ printk(KERN_ERR
+ "EXT4-fs: quota options not supported.\n");
+ break;
case Opt_usrjquota:
case Opt_grpjquota:
case Opt_offusrjquota:
@@ -1248,7 +1265,7 @@ clear_qf_name:
case Opt_jqfmt_vfsold:
case Opt_jqfmt_vfsv0:
printk(KERN_ERR
- "EXT4-fs: journalled quota options not "
+ "EXT4-fs: journaled quota options not "
"supported.\n");
break;
case Opt_noquota:
@@ -1333,14 +1350,14 @@ clear_qf_name:
}
if (!sbi->s_jquota_fmt) {
- printk(KERN_ERR "EXT4-fs: journalled quota format "
+ printk(KERN_ERR "EXT4-fs: journaled quota format "
"not specified.\n");
return 0;
}
} else {
if (sbi->s_jquota_fmt) {
- printk(KERN_ERR "EXT4-fs: journalled quota format "
- "specified with no journalling "
+ printk(KERN_ERR "EXT4-fs: journaled quota format "
+ "specified with no journaling "
"enabled.\n");
return 0;
}
@@ -1581,7 +1598,7 @@ static void ext4_orphan_cleanup (struct super_block * sb,
int ret = ext4_quota_on_mount(sb, i);
if (ret < 0)
printk(KERN_ERR
- "EXT4-fs: Cannot turn on journalled "
+ "EXT4-fs: Cannot turn on journaled "
"quota: error %d\n", ret);
}
}
@@ -3106,7 +3123,7 @@ static int ext4_release_dquot(struct dquot *dquot)
static int ext4_mark_dquot_dirty(struct dquot *dquot)
{
- /* Are we journalling quotas? */
+ /* Are we journaling quotas? */
if (EXT4_SB(dquot->dq_sb)->s_qf_names[USRQUOTA] ||
EXT4_SB(dquot->dq_sb)->s_qf_names[GRPQUOTA]) {
dquot_mark_dquot_dirty(dquot);
@@ -3153,23 +3170,42 @@ static int ext4_quota_on(struct super_block *sb, int type, int format_id,
if (!test_opt(sb, QUOTA))
return -EINVAL;
- /* Not journalling quota? */
- if ((!EXT4_SB(sb)->s_qf_names[USRQUOTA] &&
- !EXT4_SB(sb)->s_qf_names[GRPQUOTA]) || remount)
+ /* When remounting, no checks are needed and in fact, path is NULL */
+ if (remount)
return vfs_quota_on(sb, type, format_id, path, remount);
+
err = path_lookup(path, LOOKUP_FOLLOW, &nd);
if (err)
return err;
+
/* Quotafile not on the same filesystem? */
if (nd.path.mnt->mnt_sb != sb) {
path_put(&nd.path);
return -EXDEV;
}
- /* Quotafile not of fs root? */
- if (nd.path.dentry->d_parent->d_inode != sb->s_root->d_inode)
- printk(KERN_WARNING
- "EXT4-fs: Quota file not on filesystem root. "
- "Journalled quota will not work.\n");
+ /* Journaling quota? */
+ if (EXT4_SB(sb)->s_qf_names[type]) {
+ /* Quotafile not of fs root? */
+ if (nd.path.dentry->d_parent->d_inode != sb->s_root->d_inode)
+ printk(KERN_WARNING
+ "EXT4-fs: Quota file not on filesystem root. "
+ "Journaled quota will not work.\n");
+ }
+
+ /*
+ * When we journal data on quota file, we have to flush journal to see
+ * all updates to the file when we bypass pagecache...
+ */
+ if (ext4_should_journal_data(nd.path.dentry->d_inode)) {
+ /*
+ * We don't need to lock updates but journal_flush() could
+ * otherwise be livelocked...
+ */
+ jbd2_journal_lock_updates(EXT4_SB(sb)->s_journal);
+ jbd2_journal_flush(EXT4_SB(sb)->s_journal);
+ jbd2_journal_unlock_updates(EXT4_SB(sb)->s_journal);
+ }
+
path_put(&nd.path);
return vfs_quota_on(sb, type, format_id, path, remount);
}
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index e0139786f717..4d99685fdce4 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -560,7 +560,9 @@ void jbd2_journal_commit_transaction(journal_t *journal)
* transaction! Now comes the tricky part: we need to write out
* metadata. Loop over the transaction's entire buffer list:
*/
+ spin_lock(&journal->j_state_lock);
commit_transaction->t_state = T_COMMIT;
+ spin_unlock(&journal->j_state_lock);
stats.u.run.rs_logging = jiffies;
stats.u.run.rs_flushing = jbd2_time_diff(stats.u.run.rs_flushing,