#include "acl.h"
#include "namei.h"
+#ifdef CONFIG_EXT3_DEFAULTS_TO_ORDERED
+ #define EXT3_MOUNT_DEFAULT_DATA_MODE EXT3_MOUNT_ORDERED_DATA
+#else
+ #define EXT3_MOUNT_DEFAULT_DATA_MODE EXT3_MOUNT_WRITEBACK_DATA
+#endif
+
static int ext3_load_journal(struct super_block *, struct ext3_super_block *,
unsigned long journal_devnum);
static int ext3_create_journal(struct super_block *, struct ext3_super_block *,
unsigned int);
-static void ext3_commit_super (struct super_block * sb,
- struct ext3_super_block * es,
+static int ext3_commit_super(struct super_block *sb,
+ struct ext3_super_block *es,
int sync);
static void ext3_mark_recovery_complete(struct super_block * sb,
struct ext3_super_block * es);
char nbuf[16]);
static int ext3_remount (struct super_block * sb, int * flags, char * data);
static int ext3_statfs (struct dentry * dentry, struct kstatfs * buf);
-static void ext3_unlockfs(struct super_block *sb);
-static void ext3_write_super (struct super_block * sb);
-static void ext3_write_super_lockfs(struct super_block *sb);
+static int ext3_unfreeze(struct super_block *sb);
+static int ext3_freeze(struct super_block *sb);
/*
* Wrappers for journal_start/end.
if (is_handle_aborted(handle))
return;
- printk(KERN_ERR "%s: aborting transaction: %s in %s\n",
- caller, errstr, err_fn);
+ printk(KERN_ERR "EXT3-fs: %s: aborting transaction: %s in %s\n",
+ caller, errstr, err_fn);
journal_abort_handle(handle);
}
+void ext3_msg(struct super_block *sb, const char *prefix,
+ const char *fmt, ...)
+{
+ va_list args;
+
+ va_start(args, fmt);
+ printk("%sEXT3-fs (%s): ", prefix, sb->s_id);
+ vprintk(fmt, args);
+ printk("\n");
+ va_end(args);
+}
+
/* Deal with the reporting of failure conditions on a filesystem such as
* inconsistencies detected or read IO failures.
*
if (!test_opt (sb, ERRORS_CONT)) {
journal_t *journal = EXT3_SB(sb)->s_journal;
- EXT3_SB(sb)->s_mount_opt |= EXT3_MOUNT_ABORT;
+ set_opt(EXT3_SB(sb)->s_mount_opt, ABORT);
if (journal)
journal_abort(journal, -EIO);
}
if (test_opt (sb, ERRORS_RO)) {
- printk (KERN_CRIT "Remounting filesystem read-only\n");
+ ext3_msg(sb, KERN_CRIT,
+ "error: remounting filesystem read-only");
sb->s_flags |= MS_RDONLY;
}
ext3_commit_super(sb, es, 1);
if (test_opt(sb, ERRORS_PANIC))
- panic("EXT3-fs (device %s): panic forced after error\n",
+ panic("EXT3-fs (%s): panic forced after error\n",
sb->s_id);
}
return;
errstr = ext3_decode_error(sb, errno, nbuf);
- printk (KERN_CRIT "EXT3-fs error (device %s) in %s: %s\n",
- sb->s_id, function, errstr);
+ ext3_msg(sb, KERN_CRIT, "error in %s: %s", function, errstr);
ext3_handle_error(sb);
}
{
va_list args;
- printk (KERN_CRIT "ext3_abort called.\n");
-
va_start(args, fmt);
- printk(KERN_CRIT "EXT3-fs error (device %s): %s: ",sb->s_id, function);
+ printk(KERN_CRIT "EXT3-fs (%s): error: %s: ", sb->s_id, function);
vprintk(fmt, args);
printk("\n");
va_end(args);
if (test_opt(sb, ERRORS_PANIC))
- panic("EXT3-fs panic from previous error\n");
+ panic("EXT3-fs: panic from previous error\n");
if (sb->s_flags & MS_RDONLY)
return;
- printk(KERN_CRIT "Remounting filesystem read-only\n");
+ ext3_msg(sb, KERN_CRIT,
+ "error: remounting filesystem read-only");
EXT3_SB(sb)->s_mount_state |= EXT3_ERROR_FS;
sb->s_flags |= MS_RDONLY;
- EXT3_SB(sb)->s_mount_opt |= EXT3_MOUNT_ABORT;
- journal_abort(EXT3_SB(sb)->s_journal, -EIO);
+ set_opt(EXT3_SB(sb)->s_mount_opt, ABORT);
+ if (EXT3_SB(sb)->s_journal)
+ journal_abort(EXT3_SB(sb)->s_journal, -EIO);
}
void ext3_warning (struct super_block * sb, const char * function,
va_list args;
va_start(args, fmt);
- printk(KERN_WARNING "EXT3-fs warning (device %s): %s: ",
+ printk(KERN_WARNING "EXT3-fs (%s): warning: %s: ",
sb->s_id, function);
vprintk(fmt, args);
printk("\n");
if (le32_to_cpu(es->s_rev_level) > EXT3_GOOD_OLD_REV)
return;
- ext3_warning(sb, __func__,
- "updating to rev %d because of new feature flag, "
- "running e2fsck is recommended",
- EXT3_DYNAMIC_REV);
+ ext3_msg(sb, KERN_WARNING,
+ "warning: updating to rev %d because of "
+ "new feature flag, running e2fsck is recommended",
+ EXT3_DYNAMIC_REV);
es->s_first_ino = cpu_to_le32(EXT3_GOOD_OLD_FIRST_INO);
es->s_inode_size = cpu_to_le16(EXT3_GOOD_OLD_INODE_SIZE);
/*
* Open the external journal device
*/
-static struct block_device *ext3_blkdev_get(dev_t dev)
+static struct block_device *ext3_blkdev_get(dev_t dev, struct super_block *sb)
{
struct block_device *bdev;
char b[BDEVNAME_SIZE];
return bdev;
fail:
- printk(KERN_ERR "EXT3: failed to open journal device %s: %ld\n",
- __bdevname(dev, b), PTR_ERR(bdev));
+ ext3_msg(sb, "error: failed to open journal device %s: %ld",
+ __bdevname(dev, b), PTR_ERR(bdev));
+
return NULL;
}
static int ext3_blkdev_put(struct block_device *bdev)
{
bd_release(bdev);
- return blkdev_put(bdev);
+ return blkdev_put(bdev, FMODE_READ|FMODE_WRITE);
}
static int ext3_blkdev_remove(struct ext3_sb_info *sbi)
{
struct list_head *l;
- printk(KERN_ERR "sb orphan head is %d\n",
+ ext3_msg(sb, KERN_ERR, "error: sb orphan head is %d",
le32_to_cpu(sbi->s_es->s_last_orphan));
- printk(KERN_ERR "sb_info orphan list:\n");
+ ext3_msg(sb, KERN_ERR, "sb_info orphan list:");
list_for_each(l, &sbi->s_orphan) {
struct inode *inode = orphan_list_entry(l);
- printk(KERN_ERR " "
+ ext3_msg(sb, KERN_ERR, " "
"inode %s:%lu at %p: mode %o, nlink %d, next %d\n",
inode->i_sb->s_id, inode->i_ino, inode,
inode->i_mode, inode->i_nlink,
{
struct ext3_sb_info *sbi = EXT3_SB(sb);
struct ext3_super_block *es = sbi->s_es;
- int i;
+ int i, err;
+
+ lock_kernel();
ext3_xattr_put_super(sb);
- if (journal_destroy(sbi->s_journal) < 0)
+ err = journal_destroy(sbi->s_journal);
+ sbi->s_journal = NULL;
+ if (err < 0)
ext3_abort(sb, __func__, "Couldn't clean up the journal");
+
if (!(sb->s_flags & MS_RDONLY)) {
EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
es->s_state = cpu_to_le16(sbi->s_mount_state);
ext3_blkdev_remove(sbi);
}
sb->s_fs_info = NULL;
+ kfree(sbi->s_blockgroup_lock);
kfree(sbi);
- return;
+
+ unlock_kernel();
}
static struct kmem_cache *ext3_inode_cachep;
ei = kmem_cache_alloc(ext3_inode_cachep, GFP_NOFS);
if (!ei)
return NULL;
-#ifdef CONFIG_EXT3_FS_POSIX_ACL
- ei->i_acl = EXT3_ACL_NOT_CACHED;
- ei->i_default_acl = EXT3_ACL_NOT_CACHED;
-#endif
ei->i_block_alloc_info = NULL;
ei->vfs_inode.i_version = 1;
+ atomic_set(&ei->i_datasync_tid, 0);
+ atomic_set(&ei->i_sync_tid, 0);
return &ei->vfs_inode;
}
static void ext3_clear_inode(struct inode *inode)
{
struct ext3_block_alloc_info *rsv = EXT3_I(inode)->i_block_alloc_info;
-#ifdef CONFIG_EXT3_FS_POSIX_ACL
- if (EXT3_I(inode)->i_acl &&
- EXT3_I(inode)->i_acl != EXT3_ACL_NOT_CACHED) {
- posix_acl_release(EXT3_I(inode)->i_acl);
- EXT3_I(inode)->i_acl = EXT3_ACL_NOT_CACHED;
- }
- if (EXT3_I(inode)->i_default_acl &&
- EXT3_I(inode)->i_default_acl != EXT3_ACL_NOT_CACHED) {
- posix_acl_release(EXT3_I(inode)->i_default_acl);
- EXT3_I(inode)->i_default_acl = EXT3_ACL_NOT_CACHED;
- }
-#endif
+
+ vfs_dq_drop(inode);
ext3_discard_reservation(inode);
EXT3_I(inode)->i_block_alloc_info = NULL;
if (unlikely(rsv))
#if defined(CONFIG_QUOTA)
struct ext3_sb_info *sbi = EXT3_SB(sb);
- if (sbi->s_jquota_fmt)
- seq_printf(seq, ",jqfmt=%s",
- (sbi->s_jquota_fmt == QFMT_VFS_OLD) ? "vfsold": "vfsv0");
+ if (sbi->s_jquota_fmt) {
+ char *fmtname = "";
+
+ switch (sbi->s_jquota_fmt) {
+ case QFMT_VFS_OLD:
+ fmtname = "vfsold";
+ break;
+ case QFMT_VFS_V0:
+ fmtname = "vfsv0";
+ break;
+ case QFMT_VFS_V1:
+ fmtname = "vfsv1";
+ break;
+ }
+ seq_printf(seq, ",jqfmt=%s", fmtname);
+ }
if (sbi->s_qf_names[USRQUOTA])
seq_printf(seq, ",usrjquota=%s", sbi->s_qf_names[USRQUOTA]);
if (sbi->s_qf_names[GRPQUOTA])
seq_printf(seq, ",grpjquota=%s", sbi->s_qf_names[GRPQUOTA]);
- if (sbi->s_mount_opt & EXT3_MOUNT_USRQUOTA)
+ if (test_opt(sb, USRQUOTA))
seq_puts(seq, ",usrquota");
- if (sbi->s_mount_opt & EXT3_MOUNT_GRPQUOTA)
+ if (test_opt(sb, GRPQUOTA))
seq_puts(seq, ",grpquota");
#endif
}
+static char *data_mode_string(unsigned long mode)
+{
+ switch (mode) {
+ case EXT3_MOUNT_JOURNAL_DATA:
+ return "journal";
+ case EXT3_MOUNT_ORDERED_DATA:
+ return "ordered";
+ case EXT3_MOUNT_WRITEBACK_DATA:
+ return "writeback";
+ }
+ return "unknown";
+}
+
/*
* Show an option if
* - it's set to a non-default value OR
if (test_opt(sb, NOBH))
seq_puts(seq, ",nobh");
- if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA)
- seq_puts(seq, ",data=journal");
- else if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA)
- seq_puts(seq, ",data=ordered");
- else if (test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA)
- seq_puts(seq, ",data=writeback");
-
+ seq_printf(seq, ",data=%s", data_mode_string(test_opt(sb, DATA_FLAGS)));
if (test_opt(sb, DATA_ERR_ABORT))
seq_puts(seq, ",data_err=abort");
+ if (test_opt(sb, NOLOAD))
+ seq_puts(seq, ",norecovery");
+
ext3_show_quota_options(seq, sb);
return 0;
ext3_nfs_get_inode);
}
+/*
+ * Try to release metadata pages (indirect blocks, directories) which are
+ * mapped via the block device. Since these pages could have journal heads
+ * which would prevent try_to_free_buffers() from freeing them, we must use
+ * jbd layer's try_to_free_buffers() function to release them.
+ */
+static int bdev_try_to_free_page(struct super_block *sb, struct page *page,
+ gfp_t wait)
+{
+ journal_t *journal = EXT3_SB(sb)->s_journal;
+
+ WARN_ON(PageChecked(page));
+ if (!page_has_buffers(page))
+ return 0;
+ if (journal)
+ return journal_try_to_free_buffers(journal, page,
+ wait & ~__GFP_WAIT);
+ return try_to_free_buffers(page);
+}
+
#ifdef CONFIG_QUOTA
#define QTYPE2NAME(t) ((t)==USRQUOTA?"user":"group")
#define QTYPE2MOPT(on, t) ((t)==USRQUOTA?((on)##USRJQUOTA):((on)##GRPJQUOTA))
-static int ext3_dquot_initialize(struct inode *inode, int type);
-static int ext3_dquot_drop(struct inode *inode);
static int ext3_write_dquot(struct dquot *dquot);
static int ext3_acquire_dquot(struct dquot *dquot);
static int ext3_release_dquot(struct dquot *dquot);
static ssize_t ext3_quota_write(struct super_block *sb, int type,
const char *data, size_t len, loff_t off);
-static struct dquot_operations ext3_quota_operations = {
- .initialize = ext3_dquot_initialize,
- .drop = ext3_dquot_drop,
- .alloc_space = dquot_alloc_space,
- .alloc_inode = dquot_alloc_inode,
- .free_space = dquot_free_space,
- .free_inode = dquot_free_inode,
- .transfer = dquot_transfer,
+static const struct dquot_operations ext3_quota_operations = {
+ .initialize = dquot_initialize,
+ .drop = dquot_drop,
.write_dquot = ext3_write_dquot,
.acquire_dquot = ext3_acquire_dquot,
.release_dquot = ext3_release_dquot,
.mark_dirty = ext3_mark_dquot_dirty,
- .write_info = ext3_write_info
+ .write_info = ext3_write_info,
+ .alloc_dquot = dquot_alloc,
+ .destroy_dquot = dquot_destroy,
};
-static struct quotactl_ops ext3_qctl_operations = {
+static const struct quotactl_ops ext3_qctl_operations = {
.quota_on = ext3_quota_on,
.quota_off = vfs_quota_off,
.quota_sync = vfs_quota_sync,
.dirty_inode = ext3_dirty_inode,
.delete_inode = ext3_delete_inode,
.put_super = ext3_put_super,
- .write_super = ext3_write_super,
.sync_fs = ext3_sync_fs,
- .write_super_lockfs = ext3_write_super_lockfs,
- .unlockfs = ext3_unlockfs,
+ .freeze_fs = ext3_freeze,
+ .unfreeze_fs = ext3_unfreeze,
.statfs = ext3_statfs,
.remount_fs = ext3_remount,
.clear_inode = ext3_clear_inode,
.quota_read = ext3_quota_read,
.quota_write = ext3_quota_write,
#endif
+ .bdev_try_to_free_page = bdev_try_to_free_page,
};
static const struct export_operations ext3_export_ops = {
Opt_abort, Opt_data_journal, Opt_data_ordered, Opt_data_writeback,
Opt_data_err_abort, Opt_data_err_ignore,
Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota,
- Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_quota, Opt_noquota,
- Opt_ignore, Opt_barrier, Opt_err, Opt_resize, Opt_usrquota,
- Opt_grpquota
+ Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_jqfmt_vfsv1, Opt_quota,
+ Opt_noquota, Opt_ignore, Opt_barrier, Opt_err, Opt_resize,
+ Opt_usrquota, Opt_grpquota
};
static const match_table_t tokens = {
{Opt_reservation, "reservation"},
{Opt_noreservation, "noreservation"},
{Opt_noload, "noload"},
+ {Opt_noload, "norecovery"},
{Opt_nobh, "nobh"},
{Opt_bh, "bh"},
{Opt_commit, "commit=%u"},
{Opt_grpjquota, "grpjquota=%s"},
{Opt_jqfmt_vfsold, "jqfmt=vfsold"},
{Opt_jqfmt_vfsv0, "jqfmt=vfsv0"},
+ {Opt_jqfmt_vfsv1, "jqfmt=vfsv1"},
{Opt_grpquota, "grpquota"},
{Opt_noquota, "noquota"},
{Opt_quota, "quota"},
{Opt_err, NULL},
};
-static ext3_fsblk_t get_sb_block(void **data)
+static ext3_fsblk_t get_sb_block(void **data, struct super_block *sb)
{
ext3_fsblk_t sb_block;
char *options = (char *) *data;
/*todo: use simple_strtoll with >32bit ext3 */
sb_block = simple_strtoul(options, &options, 0);
if (*options && *options != ',') {
- printk("EXT3-fs: Invalid sb specification: %s\n",
+ ext3_msg(sb, "error: invalid sb specification: %s",
(char *) *data);
return 1;
}
return sb_block;
}
+#ifdef CONFIG_QUOTA
+static int set_qf_name(struct super_block *sb, int qtype, substring_t *args)
+{
+ struct ext3_sb_info *sbi = EXT3_SB(sb);
+ char *qname;
+
+ if (sb_any_quota_loaded(sb) &&
+ !sbi->s_qf_names[qtype]) {
+ ext3_msg(sb, KERN_ERR,
+ "Cannot change journaled "
+ "quota options when quota turned on");
+ return 0;
+ }
+ qname = match_strdup(args);
+ if (!qname) {
+ ext3_msg(sb, KERN_ERR,
+ "Not enough memory for storing quotafile name");
+ return 0;
+ }
+ if (sbi->s_qf_names[qtype] &&
+ strcmp(sbi->s_qf_names[qtype], qname)) {
+ ext3_msg(sb, KERN_ERR,
+ "%s quota file already specified", QTYPE2NAME(qtype));
+ kfree(qname);
+ return 0;
+ }
+ sbi->s_qf_names[qtype] = qname;
+ if (strchr(sbi->s_qf_names[qtype], '/')) {
+ ext3_msg(sb, KERN_ERR,
+ "quotafile must be on filesystem root");
+ kfree(sbi->s_qf_names[qtype]);
+ sbi->s_qf_names[qtype] = NULL;
+ return 0;
+ }
+ set_opt(sbi->s_mount_opt, QUOTA);
+ return 1;
+}
+
+static int clear_qf_name(struct super_block *sb, int qtype) {
+
+ struct ext3_sb_info *sbi = EXT3_SB(sb);
+
+ if (sb_any_quota_loaded(sb) &&
+ sbi->s_qf_names[qtype]) {
+ ext3_msg(sb, KERN_ERR, "Cannot change journaled quota options"
+ " when quota turned on");
+ return 0;
+ }
+ /*
+ * The space will be released later when all options are confirmed
+ * to be correct
+ */
+ sbi->s_qf_names[qtype] = NULL;
+ return 1;
+}
+#endif
+
static int parse_options (char *options, struct super_block *sb,
unsigned int *inum, unsigned long *journal_devnum,
ext3_fsblk_t *n_blocks_count, int is_remount)
int data_opt = 0;
int option;
#ifdef CONFIG_QUOTA
- int qtype, qfmt;
- char *qname;
+ int qfmt;
#endif
if (!options)
#else
case Opt_user_xattr:
case Opt_nouser_xattr:
- printk("EXT3 (no)user_xattr options not supported\n");
+ ext3_msg(sb, KERN_INFO,
+ "(no)user_xattr options not supported");
break;
#endif
#ifdef CONFIG_EXT3_FS_POSIX_ACL
#else
case Opt_acl:
case Opt_noacl:
- printk("EXT3 (no)acl options not supported\n");
+ ext3_msg(sb, KERN_INFO,
+ "(no)acl options not supported");
break;
#endif
case Opt_reservation:
user to specify an existing inode to be the
journal file. */
if (is_remount) {
- printk(KERN_ERR "EXT3-fs: cannot specify "
- "journal on remount\n");
+ ext3_msg(sb, KERN_ERR, "error: cannot specify "
+ "journal on remount");
return 0;
}
set_opt (sbi->s_mount_opt, UPDATE_JOURNAL);
break;
case Opt_journal_inum:
if (is_remount) {
- printk(KERN_ERR "EXT3-fs: cannot specify "
- "journal on remount\n");
+ ext3_msg(sb, KERN_ERR, "error: cannot specify "
+ "journal on remount");
return 0;
}
if (match_int(&args[0], &option))
break;
case Opt_journal_dev:
if (is_remount) {
- printk(KERN_ERR "EXT3-fs: cannot specify "
- "journal on remount\n");
+ ext3_msg(sb, KERN_ERR, "error: cannot specify "
+ "journal on remount");
return 0;
}
if (match_int(&args[0], &option))
data_opt = EXT3_MOUNT_WRITEBACK_DATA;
datacheck:
if (is_remount) {
- if ((sbi->s_mount_opt & EXT3_MOUNT_DATA_FLAGS)
- != data_opt) {
- printk(KERN_ERR
- "EXT3-fs: cannot change data "
- "mode on remount\n");
- return 0;
- }
+ if (test_opt(sb, DATA_FLAGS) == data_opt)
+ break;
+ ext3_msg(sb, KERN_ERR,
+ "error: cannot change "
+ "data mode on remount. The filesystem "
+ "is mounted in data=%s mode and you "
+ "try to remount it in data=%s mode.",
+ data_mode_string(test_opt(sb,
+ DATA_FLAGS)),
+ data_mode_string(data_opt));
+ return 0;
} else {
- sbi->s_mount_opt &= ~EXT3_MOUNT_DATA_FLAGS;
+ clear_opt(sbi->s_mount_opt, DATA_FLAGS);
sbi->s_mount_opt |= data_opt;
}
break;
break;
#ifdef CONFIG_QUOTA
case Opt_usrjquota:
- qtype = USRQUOTA;
- goto set_qf_name;
- case Opt_grpjquota:
- qtype = GRPQUOTA;
-set_qf_name:
- if ((sb_any_quota_enabled(sb) ||
- sb_any_quota_suspended(sb)) &&
- !sbi->s_qf_names[qtype]) {
- printk(KERN_ERR
- "EXT3-fs: Cannot change journaled "
- "quota options when quota turned on.\n");
+ if (!set_qf_name(sb, USRQUOTA, &args[0]))
return 0;
- }
- qname = match_strdup(&args[0]);
- if (!qname) {
- printk(KERN_ERR
- "EXT3-fs: not enough memory for "
- "storing quotafile name.\n");
- return 0;
- }
- if (sbi->s_qf_names[qtype] &&
- strcmp(sbi->s_qf_names[qtype], qname)) {
- printk(KERN_ERR
- "EXT3-fs: %s quota file already "
- "specified.\n", QTYPE2NAME(qtype));
- kfree(qname);
- return 0;
- }
- sbi->s_qf_names[qtype] = qname;
- if (strchr(sbi->s_qf_names[qtype], '/')) {
- printk(KERN_ERR
- "EXT3-fs: quotafile must be on "
- "filesystem root.\n");
- kfree(sbi->s_qf_names[qtype]);
- sbi->s_qf_names[qtype] = NULL;
+ break;
+ case Opt_grpjquota:
+ if (!set_qf_name(sb, GRPQUOTA, &args[0]))
return 0;
- }
- set_opt(sbi->s_mount_opt, QUOTA);
break;
case Opt_offusrjquota:
- qtype = USRQUOTA;
- goto clear_qf_name;
+ if (!clear_qf_name(sb, USRQUOTA))
+ return 0;
+ break;
case Opt_offgrpjquota:
- qtype = GRPQUOTA;
-clear_qf_name:
- if ((sb_any_quota_enabled(sb) ||
- sb_any_quota_suspended(sb)) &&
- sbi->s_qf_names[qtype]) {
- printk(KERN_ERR "EXT3-fs: Cannot change "
- "journaled quota options when "
- "quota turned on.\n");
+ if (!clear_qf_name(sb, GRPQUOTA))
return 0;
- }
- /*
- * The space will be released later when all options
- * are confirmed to be correct
- */
- sbi->s_qf_names[qtype] = NULL;
break;
case Opt_jqfmt_vfsold:
qfmt = QFMT_VFS_OLD;
goto set_qf_format;
case Opt_jqfmt_vfsv0:
qfmt = QFMT_VFS_V0;
+ goto set_qf_format;
+ case Opt_jqfmt_vfsv1:
+ qfmt = QFMT_VFS_V1;
set_qf_format:
- if ((sb_any_quota_enabled(sb) ||
- sb_any_quota_suspended(sb)) &&
+ if (sb_any_quota_loaded(sb) &&
sbi->s_jquota_fmt != qfmt) {
- printk(KERN_ERR "EXT3-fs: Cannot change "
+ ext3_msg(sb, KERN_ERR, "error: cannot change "
"journaled quota options when "
- "quota turned on.\n");
+ "quota turned on.");
return 0;
}
sbi->s_jquota_fmt = qfmt;
set_opt(sbi->s_mount_opt, GRPQUOTA);
break;
case Opt_noquota:
- if (sb_any_quota_enabled(sb) ||
- sb_any_quota_suspended(sb)) {
- printk(KERN_ERR "EXT3-fs: Cannot change quota "
- "options when quota turned on.\n");
+ if (sb_any_quota_loaded(sb)) {
+ ext3_msg(sb, KERN_ERR, "error: cannot change "
+ "quota options when quota turned on.");
return 0;
}
clear_opt(sbi->s_mount_opt, QUOTA);
case Opt_quota:
case Opt_usrquota:
case Opt_grpquota:
- printk(KERN_ERR
- "EXT3-fs: quota options not supported.\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: quota options not supported.");
break;
case Opt_usrjquota:
case Opt_grpjquota:
case Opt_offgrpjquota:
case Opt_jqfmt_vfsold:
case Opt_jqfmt_vfsv0:
- printk(KERN_ERR
- "EXT3-fs: journaled quota options not "
- "supported.\n");
+ case Opt_jqfmt_vfsv1:
+ ext3_msg(sb, KERN_ERR,
+ "error: journaled quota options not "
+ "supported.");
break;
case Opt_noquota:
break;
break;
case Opt_resize:
if (!is_remount) {
- printk("EXT3-fs: resize option only available "
- "for remount\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: resize option only available "
+ "for remount");
return 0;
}
if (match_int(&args[0], &option) != 0)
clear_opt(sbi->s_mount_opt, NOBH);
break;
default:
- printk (KERN_ERR
- "EXT3-fs: Unrecognized mount option \"%s\" "
- "or missing value\n", p);
+ ext3_msg(sb, KERN_ERR,
+ "error: unrecognized mount option \"%s\" "
+ "or missing value", p);
return 0;
}
}
#ifdef CONFIG_QUOTA
if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) {
- if ((sbi->s_mount_opt & EXT3_MOUNT_USRQUOTA) &&
- sbi->s_qf_names[USRQUOTA])
+ if (test_opt(sb, USRQUOTA) && sbi->s_qf_names[USRQUOTA])
clear_opt(sbi->s_mount_opt, USRQUOTA);
-
- if ((sbi->s_mount_opt & EXT3_MOUNT_GRPQUOTA) &&
- sbi->s_qf_names[GRPQUOTA])
+ if (test_opt(sb, GRPQUOTA) && sbi->s_qf_names[GRPQUOTA])
clear_opt(sbi->s_mount_opt, GRPQUOTA);
- if ((sbi->s_qf_names[USRQUOTA] &&
- (sbi->s_mount_opt & EXT3_MOUNT_GRPQUOTA)) ||
- (sbi->s_qf_names[GRPQUOTA] &&
- (sbi->s_mount_opt & EXT3_MOUNT_USRQUOTA))) {
- printk(KERN_ERR "EXT3-fs: old and new quota "
- "format mixing.\n");
+ if (test_opt(sb, GRPQUOTA) || test_opt(sb, USRQUOTA)) {
+ ext3_msg(sb, KERN_ERR, "error: old and new quota "
+ "format mixing.");
return 0;
}
if (!sbi->s_jquota_fmt) {
- printk(KERN_ERR "EXT3-fs: journaled quota format "
- "not specified.\n");
+ ext3_msg(sb, KERN_ERR, "error: journaled quota format "
+ "not specified.");
return 0;
}
} else {
if (sbi->s_jquota_fmt) {
- printk(KERN_ERR "EXT3-fs: journaled quota format "
+ ext3_msg(sb, KERN_ERR, "error: journaled quota format "
"specified with no journaling "
- "enabled.\n");
+ "enabled.");
return 0;
}
}
int res = 0;
if (le32_to_cpu(es->s_rev_level) > EXT3_MAX_SUPP_REV) {
- printk (KERN_ERR "EXT3-fs warning: revision level too high, "
- "forcing read-only mode\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: revision level too high, "
+ "forcing read-only mode");
res = MS_RDONLY;
}
if (read_only)
return res;
if (!(sbi->s_mount_state & EXT3_VALID_FS))
- printk (KERN_WARNING "EXT3-fs warning: mounting unchecked fs, "
- "running e2fsck is recommended\n");
+ ext3_msg(sb, KERN_WARNING,
+ "warning: mounting unchecked fs, "
+ "running e2fsck is recommended");
else if ((sbi->s_mount_state & EXT3_ERROR_FS))
- printk (KERN_WARNING
- "EXT3-fs warning: mounting fs with errors, "
- "running e2fsck is recommended\n");
+ ext3_msg(sb, KERN_WARNING,
+ "warning: mounting fs with errors, "
+ "running e2fsck is recommended");
else if ((__s16) le16_to_cpu(es->s_max_mnt_count) >= 0 &&
le16_to_cpu(es->s_mnt_count) >=
(unsigned short) (__s16) le16_to_cpu(es->s_max_mnt_count))
- printk (KERN_WARNING
- "EXT3-fs warning: maximal mount count reached, "
- "running e2fsck is recommended\n");
+ ext3_msg(sb, KERN_WARNING,
+ "warning: maximal mount count reached, "
+ "running e2fsck is recommended");
else if (le32_to_cpu(es->s_checkinterval) &&
(le32_to_cpu(es->s_lastcheck) +
le32_to_cpu(es->s_checkinterval) <= get_seconds()))
- printk (KERN_WARNING
- "EXT3-fs warning: checktime reached, "
- "running e2fsck is recommended\n");
+ ext3_msg(sb, KERN_WARNING,
+ "warning: checktime reached, "
+ "running e2fsck is recommended");
#if 0
/* @@@ We _will_ want to clear the valid bit if we find
inconsistencies, to force a fsck at reboot. But for
ext3_commit_super(sb, es, 1);
if (test_opt(sb, DEBUG))
- printk(KERN_INFO "[EXT3 FS bs=%lu, gc=%lu, "
- "bpg=%lu, ipg=%lu, mo=%04lx]\n",
+ ext3_msg(sb, KERN_INFO, "[bs=%lu, gc=%lu, "
+ "bpg=%lu, ipg=%lu, mo=%04lx]",
sb->s_blocksize,
sbi->s_groups_count,
EXT3_BLOCKS_PER_GROUP(sb),
EXT3_INODES_PER_GROUP(sb),
sbi->s_mount_opt);
- printk(KERN_INFO "EXT3 FS on %s, ", sb->s_id);
if (EXT3_SB(sb)->s_journal->j_inode == NULL) {
char b[BDEVNAME_SIZE];
-
- printk("external journal on %s\n",
+ ext3_msg(sb, KERN_INFO, "using external journal on %s",
bdevname(EXT3_SB(sb)->s_journal->j_dev, b));
} else {
- printk("internal journal\n");
+ ext3_msg(sb, KERN_INFO, "using internal journal");
}
return res;
}
}
if (bdev_read_only(sb->s_bdev)) {
- printk(KERN_ERR "EXT3-fs: write access "
- "unavailable, skipping orphan cleanup.\n");
+ ext3_msg(sb, KERN_ERR, "error: write access "
+ "unavailable, skipping orphan cleanup.");
return;
}
}
if (s_flags & MS_RDONLY) {
- printk(KERN_INFO "EXT3-fs: %s: orphan cleanup on readonly fs\n",
- sb->s_id);
+ ext3_msg(sb, KERN_INFO, "orphan cleanup on readonly fs");
sb->s_flags &= ~MS_RDONLY;
}
#ifdef CONFIG_QUOTA
if (EXT3_SB(sb)->s_qf_names[i]) {
int ret = ext3_quota_on_mount(sb, i);
if (ret < 0)
- printk(KERN_ERR
- "EXT3-fs: Cannot turn on journaled "
- "quota: error %d\n", ret);
+ ext3_msg(sb, KERN_ERR,
+ "error: cannot turn on journaled "
+ "quota: %d", ret);
}
}
#endif
}
list_add(&EXT3_I(inode)->i_orphan, &EXT3_SB(sb)->s_orphan);
- DQUOT_INIT(inode);
+ vfs_dq_init(inode);
if (inode->i_nlink) {
printk(KERN_DEBUG
"%s: truncating inode %lu to %Ld bytes\n",
#define PLURAL(x) (x), ((x)==1) ? "" : "s"
if (nr_orphans)
- printk(KERN_INFO "EXT3-fs: %s: %d orphan inode%s deleted\n",
- sb->s_id, PLURAL(nr_orphans));
+ ext3_msg(sb, KERN_INFO, "%d orphan inode%s deleted",
+ PLURAL(nr_orphans));
if (nr_truncates)
- printk(KERN_INFO "EXT3-fs: %s: %d truncate%s cleaned up\n",
- sb->s_id, PLURAL(nr_truncates));
+ ext3_msg(sb, KERN_INFO, "%d truncate%s cleaned up",
+ PLURAL(nr_truncates));
#ifdef CONFIG_QUOTA
/* Turn quotas off */
for (i = 0; i < MAXQUOTAS; i++) {
struct ext3_super_block *es = NULL;
struct ext3_sb_info *sbi;
ext3_fsblk_t block;
- ext3_fsblk_t sb_block = get_sb_block(&data);
+ ext3_fsblk_t sb_block = get_sb_block(&data, sb);
ext3_fsblk_t logic_sb_block;
unsigned long offset = 0;
unsigned int journal_inum = 0;
sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
if (!sbi)
return -ENOMEM;
+
+ sbi->s_blockgroup_lock =
+ kzalloc(sizeof(struct blockgroup_lock), GFP_KERNEL);
+ if (!sbi->s_blockgroup_lock) {
+ kfree(sbi);
+ return -ENOMEM;
+ }
sb->s_fs_info = sbi;
sbi->s_mount_opt = 0;
sbi->s_resuid = EXT3_DEF_RESUID;
blocksize = sb_min_blocksize(sb, EXT3_MIN_BLOCK_SIZE);
if (!blocksize) {
- printk(KERN_ERR "EXT3-fs: unable to set blocksize\n");
+ ext3_msg(sb, KERN_ERR, "error: unable to set blocksize");
goto out_fail;
}
}
if (!(bh = sb_bread(sb, logic_sb_block))) {
- printk (KERN_ERR "EXT3-fs: unable to read superblock\n");
+ ext3_msg(sb, KERN_ERR, "error: unable to read superblock");
goto out_fail;
}
/*
set_opt(sbi->s_mount_opt, POSIX_ACL);
#endif
if ((def_mount_opts & EXT3_DEFM_JMODE) == EXT3_DEFM_JMODE_DATA)
- sbi->s_mount_opt |= EXT3_MOUNT_JOURNAL_DATA;
+ set_opt(sbi->s_mount_opt, JOURNAL_DATA);
else if ((def_mount_opts & EXT3_DEFM_JMODE) == EXT3_DEFM_JMODE_ORDERED)
- sbi->s_mount_opt |= EXT3_MOUNT_ORDERED_DATA;
+ set_opt(sbi->s_mount_opt, ORDERED_DATA);
else if ((def_mount_opts & EXT3_DEFM_JMODE) == EXT3_DEFM_JMODE_WBACK)
- sbi->s_mount_opt |= EXT3_MOUNT_WRITEBACK_DATA;
+ set_opt(sbi->s_mount_opt, WRITEBACK_DATA);
if (le16_to_cpu(sbi->s_es->s_errors) == EXT3_ERRORS_PANIC)
set_opt(sbi->s_mount_opt, ERRORS_PANIC);
goto failed_mount;
sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
- ((sbi->s_mount_opt & EXT3_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
+ (test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0);
if (le32_to_cpu(es->s_rev_level) == EXT3_GOOD_OLD_REV &&
(EXT3_HAS_COMPAT_FEATURE(sb, ~0U) ||
EXT3_HAS_RO_COMPAT_FEATURE(sb, ~0U) ||
EXT3_HAS_INCOMPAT_FEATURE(sb, ~0U)))
- printk(KERN_WARNING
- "EXT3-fs warning: feature flags set on rev 0 fs, "
- "running e2fsck is recommended\n");
+ ext3_msg(sb, KERN_WARNING,
+ "warning: feature flags set on rev 0 fs, "
+ "running e2fsck is recommended");
/*
* Check feature flags regardless of the revision level, since we
* previously didn't change the revision level when setting the flags,
*/
features = EXT3_HAS_INCOMPAT_FEATURE(sb, ~EXT3_FEATURE_INCOMPAT_SUPP);
if (features) {
- printk(KERN_ERR "EXT3-fs: %s: couldn't mount because of "
- "unsupported optional features (%x).\n",
- sb->s_id, le32_to_cpu(features));
+ ext3_msg(sb, KERN_ERR,
+ "error: couldn't mount because of unsupported "
+ "optional features (%x)", le32_to_cpu(features));
goto failed_mount;
}
features = EXT3_HAS_RO_COMPAT_FEATURE(sb, ~EXT3_FEATURE_RO_COMPAT_SUPP);
if (!(sb->s_flags & MS_RDONLY) && features) {
- printk(KERN_ERR "EXT3-fs: %s: couldn't mount RDWR because of "
- "unsupported optional features (%x).\n",
- sb->s_id, le32_to_cpu(features));
+ ext3_msg(sb, KERN_ERR,
+ "error: couldn't mount RDWR because of unsupported "
+ "optional features (%x)", le32_to_cpu(features));
goto failed_mount;
}
blocksize = BLOCK_SIZE << le32_to_cpu(es->s_log_block_size);
if (blocksize < EXT3_MIN_BLOCK_SIZE ||
blocksize > EXT3_MAX_BLOCK_SIZE) {
- printk(KERN_ERR
- "EXT3-fs: Unsupported filesystem blocksize %d on %s.\n",
- blocksize, sb->s_id);
+ ext3_msg(sb, KERN_ERR,
+ "error: couldn't mount because of unsupported "
+ "filesystem blocksize %d", blocksize);
goto failed_mount;
}
- hblock = bdev_hardsect_size(sb->s_bdev);
+ hblock = bdev_logical_block_size(sb->s_bdev);
if (sb->s_blocksize != blocksize) {
/*
* Make sure the blocksize for the filesystem is larger
* than the hardware sectorsize for the machine.
*/
if (blocksize < hblock) {
- printk(KERN_ERR "EXT3-fs: blocksize %d too small for "
- "device blocksize %d.\n", blocksize, hblock);
+ ext3_msg(sb, KERN_ERR,
+ "error: fsblocksize %d too small for "
+ "hardware sectorsize %d", blocksize, hblock);
goto failed_mount;
}
brelse (bh);
if (!sb_set_blocksize(sb, blocksize)) {
- printk(KERN_ERR "EXT3-fs: bad blocksize %d.\n",
- blocksize);
+ ext3_msg(sb, KERN_ERR,
+ "error: bad blocksize %d", blocksize);
goto out_fail;
}
logic_sb_block = (sb_block * EXT3_MIN_BLOCK_SIZE) / blocksize;
offset = (sb_block * EXT3_MIN_BLOCK_SIZE) % blocksize;
bh = sb_bread(sb, logic_sb_block);
if (!bh) {
- printk(KERN_ERR
- "EXT3-fs: Can't read superblock on 2nd try.\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: can't read superblock on 2nd try");
goto failed_mount;
}
es = (struct ext3_super_block *)(((char *)bh->b_data) + offset);
sbi->s_es = es;
if (es->s_magic != cpu_to_le16(EXT3_SUPER_MAGIC)) {
- printk (KERN_ERR
- "EXT3-fs: Magic mismatch, very weird !\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: magic mismatch");
goto failed_mount;
}
}
if ((sbi->s_inode_size < EXT3_GOOD_OLD_INODE_SIZE) ||
(!is_power_of_2(sbi->s_inode_size)) ||
(sbi->s_inode_size > blocksize)) {
- printk (KERN_ERR
- "EXT3-fs: unsupported inode size: %d\n",
+ ext3_msg(sb, KERN_ERR,
+ "error: unsupported inode size: %d",
sbi->s_inode_size);
goto failed_mount;
}
sbi->s_frag_size = EXT3_MIN_FRAG_SIZE <<
le32_to_cpu(es->s_log_frag_size);
if (blocksize != sbi->s_frag_size) {
- printk(KERN_ERR
- "EXT3-fs: fragsize %lu != blocksize %u (unsupported)\n",
+ ext3_msg(sb, KERN_ERR,
+ "error: fragsize %lu != blocksize %u (unsupported)",
sbi->s_frag_size, blocksize);
goto failed_mount;
}
for (i=0; i < 4; i++)
sbi->s_hash_seed[i] = le32_to_cpu(es->s_hash_seed[i]);
sbi->s_def_hash_version = es->s_def_hash_version;
+ i = le32_to_cpu(es->s_flags);
+ if (i & EXT2_FLAGS_UNSIGNED_HASH)
+ sbi->s_hash_unsigned = 3;
+ else if ((i & EXT2_FLAGS_SIGNED_HASH) == 0) {
+#ifdef __CHAR_UNSIGNED__
+ es->s_flags |= cpu_to_le32(EXT2_FLAGS_UNSIGNED_HASH);
+ sbi->s_hash_unsigned = 3;
+#else
+ es->s_flags |= cpu_to_le32(EXT2_FLAGS_SIGNED_HASH);
+#endif
+ }
if (sbi->s_blocks_per_group > blocksize * 8) {
- printk (KERN_ERR
- "EXT3-fs: #blocks per group too big: %lu\n",
+ ext3_msg(sb, KERN_ERR,
+ "#blocks per group too big: %lu",
sbi->s_blocks_per_group);
goto failed_mount;
}
if (sbi->s_frags_per_group > blocksize * 8) {
- printk (KERN_ERR
- "EXT3-fs: #fragments per group too big: %lu\n",
+ ext3_msg(sb, KERN_ERR,
+ "error: #fragments per group too big: %lu",
sbi->s_frags_per_group);
goto failed_mount;
}
if (sbi->s_inodes_per_group > blocksize * 8) {
- printk (KERN_ERR
- "EXT3-fs: #inodes per group too big: %lu\n",
+ ext3_msg(sb, KERN_ERR,
+ "error: #inodes per group too big: %lu",
sbi->s_inodes_per_group);
goto failed_mount;
}
if (le32_to_cpu(es->s_blocks_count) >
(sector_t)(~0ULL) >> (sb->s_blocksize_bits - 9)) {
- printk(KERN_ERR "EXT3-fs: filesystem on %s:"
- " too large to mount safely\n", sb->s_id);
+ ext3_msg(sb, KERN_ERR,
+ "error: filesystem is too large to mount safely");
if (sizeof(sector_t) < 8)
- printk(KERN_WARNING "EXT3-fs: CONFIG_LBD not "
- "enabled\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: CONFIG_LBDAF not enabled");
goto failed_mount;
}
sbi->s_group_desc = kmalloc(db_count * sizeof (struct buffer_head *),
GFP_KERNEL);
if (sbi->s_group_desc == NULL) {
- printk (KERN_ERR "EXT3-fs: not enough memory\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: not enough memory");
goto failed_mount;
}
- bgl_lock_init(&sbi->s_blockgroup_lock);
+ bgl_lock_init(sbi->s_blockgroup_lock);
for (i = 0; i < db_count; i++) {
block = descriptor_loc(sb, logic_sb_block, i);
sbi->s_group_desc[i] = sb_bread(sb, block);
if (!sbi->s_group_desc[i]) {
- printk (KERN_ERR "EXT3-fs: "
- "can't read group descriptor %d\n", i);
+ ext3_msg(sb, KERN_ERR,
+ "error: can't read group descriptor %d", i);
db_count = i;
goto failed_mount2;
}
}
if (!ext3_check_descriptors (sb)) {
- printk(KERN_ERR "EXT3-fs: group descriptors corrupted!\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: group descriptors corrupted");
goto failed_mount2;
}
sbi->s_gdb_count = db_count;
ext3_count_dirs(sb));
}
if (err) {
- printk(KERN_ERR "EXT3-fs: insufficient memory\n");
+ ext3_msg(sb, KERN_ERR, "error: insufficient memory");
goto failed_mount3;
}
sb->dq_op = &ext3_quota_operations;
#endif
INIT_LIST_HEAD(&sbi->s_orphan); /* unlinked but open files */
+ mutex_init(&sbi->s_orphan_lock);
+ mutex_init(&sbi->s_resize_lock);
sb->s_root = NULL;
goto failed_mount3;
} else {
if (!silent)
- printk (KERN_ERR
- "ext3: No journal on filesystem on %s\n",
- sb->s_id);
+ ext3_msg(sb, KERN_ERR,
+ "error: no journal found. "
+ "mounting ext3 over ext2?");
goto failed_mount3;
}
cope, else JOURNAL_DATA */
if (journal_check_available_features
(sbi->s_journal, 0, 0, JFS_FEATURE_INCOMPAT_REVOKE))
- set_opt(sbi->s_mount_opt, ORDERED_DATA);
+ set_opt(sbi->s_mount_opt, DEFAULT_DATA_MODE);
else
set_opt(sbi->s_mount_opt, JOURNAL_DATA);
break;
case EXT3_MOUNT_WRITEBACK_DATA:
if (!journal_check_available_features
(sbi->s_journal, 0, 0, JFS_FEATURE_INCOMPAT_REVOKE)) {
- printk(KERN_ERR "EXT3-fs: Journal does not support "
- "requested data journaling mode\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: journal does not support "
+ "requested data journaling mode");
goto failed_mount4;
}
default:
if (test_opt(sb, NOBH)) {
if (!(test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA)) {
- printk(KERN_WARNING "EXT3-fs: Ignoring nobh option - "
- "its supported only with writeback mode\n");
+ ext3_msg(sb, KERN_WARNING,
+ "warning: ignoring nobh option - "
+ "it is supported only with writeback mode");
clear_opt(sbi->s_mount_opt, NOBH);
}
}
root = ext3_iget(sb, EXT3_ROOT_INO);
if (IS_ERR(root)) {
- printk(KERN_ERR "EXT3-fs: get root inode failed\n");
+ ext3_msg(sb, KERN_ERR, "error: get root inode failed");
ret = PTR_ERR(root);
goto failed_mount4;
}
if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) {
iput(root);
- printk(KERN_ERR "EXT3-fs: corrupt root inode, run e2fsck\n");
+ ext3_msg(sb, KERN_ERR, "error: corrupt root inode, run e2fsck");
goto failed_mount4;
}
sb->s_root = d_alloc_root(root);
if (!sb->s_root) {
- printk(KERN_ERR "EXT3-fs: get root dentry failed\n");
+ ext3_msg(sb, KERN_ERR, "error: get root dentry failed");
iput(root);
ret = -ENOMEM;
goto failed_mount4;
}
ext3_setup_super (sb, es, sb->s_flags & MS_RDONLY);
- /*
- * akpm: core read_super() calls in here with the superblock locked.
- * That deadlocks, because orphan cleanup needs to lock the superblock
- * in numerous places. Here we just pop the lock - it's relatively
- * harmless, because we are now ready to accept write_super() requests,
- * and aviro says that's the only reason for hanging onto the
- * superblock lock.
- */
+
EXT3_SB(sb)->s_mount_state |= EXT3_ORPHAN_FS;
ext3_orphan_cleanup(sb, es);
EXT3_SB(sb)->s_mount_state &= ~EXT3_ORPHAN_FS;
if (needs_recovery)
- printk (KERN_INFO "EXT3-fs: recovery complete.\n");
+ ext3_msg(sb, KERN_INFO, "recovery complete");
ext3_mark_recovery_complete(sb, es);
- printk (KERN_INFO "EXT3-fs: mounted filesystem with %s data mode.\n",
+ ext3_msg(sb, KERN_INFO, "mounted filesystem with %s data mode",
test_opt(sb,DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA ? "journal":
test_opt(sb,DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA ? "ordered":
"writeback");
cantfind_ext3:
if (!silent)
- printk(KERN_ERR "VFS: Can't find ext3 filesystem on dev %s.\n",
+ ext3_msg(sb, KERN_INFO,
+ "error: can't find ext3 filesystem on dev %s.",
sb->s_id);
goto failed_mount;
brelse(bh);
out_fail:
sb->s_fs_info = NULL;
+ kfree(sbi->s_blockgroup_lock);
kfree(sbi);
lock_kernel();
return ret;
journal_inode = ext3_iget(sb, journal_inum);
if (IS_ERR(journal_inode)) {
- printk(KERN_ERR "EXT3-fs: no journal found.\n");
+ ext3_msg(sb, KERN_ERR, "error: no journal found");
return NULL;
}
if (!journal_inode->i_nlink) {
make_bad_inode(journal_inode);
iput(journal_inode);
- printk(KERN_ERR "EXT3-fs: journal inode is deleted.\n");
+ ext3_msg(sb, KERN_ERR, "error: journal inode is deleted");
return NULL;
}
jbd_debug(2, "Journal inode found at %p: %Ld bytes\n",
journal_inode, journal_inode->i_size);
if (!S_ISREG(journal_inode->i_mode)) {
- printk(KERN_ERR "EXT3-fs: invalid journal inode.\n");
+ ext3_msg(sb, KERN_ERR, "error: invalid journal inode");
iput(journal_inode);
return NULL;
}
journal = journal_init_inode(journal_inode);
if (!journal) {
- printk(KERN_ERR "EXT3-fs: Could not load journal inode\n");
+ ext3_msg(sb, KERN_ERR, "error: could not load journal inode");
iput(journal_inode);
return NULL;
}
struct ext3_super_block * es;
struct block_device *bdev;
- bdev = ext3_blkdev_get(j_dev);
+ bdev = ext3_blkdev_get(j_dev, sb);
if (bdev == NULL)
return NULL;
if (bd_claim(bdev, sb)) {
- printk(KERN_ERR
- "EXT3: failed to claim external journal device.\n");
- blkdev_put(bdev);
+ ext3_msg(sb, KERN_ERR,
+ "error: failed to claim external journal device");
+ blkdev_put(bdev, FMODE_READ|FMODE_WRITE);
return NULL;
}
blocksize = sb->s_blocksize;
- hblock = bdev_hardsect_size(bdev);
+ hblock = bdev_logical_block_size(bdev);
if (blocksize < hblock) {
- printk(KERN_ERR
- "EXT3-fs: blocksize too small for journal device.\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: blocksize too small for journal device");
goto out_bdev;
}
offset = EXT3_MIN_BLOCK_SIZE % blocksize;
set_blocksize(bdev, blocksize);
if (!(bh = __bread(bdev, sb_block, blocksize))) {
- printk(KERN_ERR "EXT3-fs: couldn't read superblock of "
- "external journal\n");
+ ext3_msg(sb, KERN_ERR, "error: couldn't read superblock of "
+ "external journal");
goto out_bdev;
}
if ((le16_to_cpu(es->s_magic) != EXT3_SUPER_MAGIC) ||
!(le32_to_cpu(es->s_feature_incompat) &
EXT3_FEATURE_INCOMPAT_JOURNAL_DEV)) {
- printk(KERN_ERR "EXT3-fs: external journal has "
- "bad superblock\n");
+ ext3_msg(sb, KERN_ERR, "error: external journal has "
+ "bad superblock");
brelse(bh);
goto out_bdev;
}
if (memcmp(EXT3_SB(sb)->s_es->s_journal_uuid, es->s_uuid, 16)) {
- printk(KERN_ERR "EXT3-fs: journal UUID does not match\n");
+ ext3_msg(sb, KERN_ERR, "error: journal UUID does not match");
brelse(bh);
goto out_bdev;
}
journal = journal_init_dev(bdev, sb->s_bdev,
start, len, blocksize);
if (!journal) {
- printk(KERN_ERR "EXT3-fs: failed to create device journal\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: failed to create device journal");
goto out_bdev;
}
journal->j_private = sb;
ll_rw_block(READ, 1, &journal->j_sb_buffer);
wait_on_buffer(journal->j_sb_buffer);
if (!buffer_uptodate(journal->j_sb_buffer)) {
- printk(KERN_ERR "EXT3-fs: I/O error on journal device\n");
+ ext3_msg(sb, KERN_ERR, "I/O error on journal device");
goto out_journal;
}
if (be32_to_cpu(journal->j_superblock->s_nr_users) != 1) {
- printk(KERN_ERR "EXT3-fs: External journal has more than one "
- "user (unsupported) - %d\n",
+ ext3_msg(sb, KERN_ERR,
+ "error: external journal has more than one "
+ "user (unsupported) - %d",
be32_to_cpu(journal->j_superblock->s_nr_users));
goto out_journal;
}
if (journal_devnum &&
journal_devnum != le32_to_cpu(es->s_journal_dev)) {
- printk(KERN_INFO "EXT3-fs: external journal device major/minor "
- "numbers have changed\n");
+ ext3_msg(sb, KERN_INFO, "external journal device major/minor "
+ "numbers have changed");
journal_dev = new_decode_dev(journal_devnum);
} else
journal_dev = new_decode_dev(le32_to_cpu(es->s_journal_dev));
if (EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER)) {
if (sb->s_flags & MS_RDONLY) {
- printk(KERN_INFO "EXT3-fs: INFO: recovery "
- "required on readonly filesystem.\n");
+ ext3_msg(sb, KERN_INFO,
+ "recovery required on readonly filesystem");
if (really_read_only) {
- printk(KERN_ERR "EXT3-fs: write access "
- "unavailable, cannot proceed.\n");
+ ext3_msg(sb, KERN_ERR, "error: write access "
+ "unavailable, cannot proceed");
return -EROFS;
}
- printk (KERN_INFO "EXT3-fs: write access will "
- "be enabled during recovery.\n");
+ ext3_msg(sb, KERN_INFO,
+ "write access will be enabled during recovery");
}
}
if (journal_inum && journal_dev) {
- printk(KERN_ERR "EXT3-fs: filesystem has both journal "
- "and inode journals!\n");
+ ext3_msg(sb, KERN_ERR, "error: filesystem has both journal "
+ "and inode journals");
return -EINVAL;
}
if (!really_read_only && test_opt(sb, UPDATE_JOURNAL)) {
err = journal_update_format(journal);
if (err) {
- printk(KERN_ERR "EXT3-fs: error updating journal.\n");
+ ext3_msg(sb, KERN_ERR, "error updating journal");
journal_destroy(journal);
return err;
}
err = journal_load(journal);
if (err) {
- printk(KERN_ERR "EXT3-fs: error loading journal.\n");
+ ext3_msg(sb, KERN_ERR, "error loading journal");
journal_destroy(journal);
return err;
}
if (journal_devnum &&
journal_devnum != le32_to_cpu(es->s_journal_dev)) {
es->s_journal_dev = cpu_to_le32(journal_devnum);
- sb->s_dirt = 1;
/* Make sure we flush the recovery flag to disk. */
ext3_commit_super(sb, es, 1);
return 0;
}
-static int ext3_create_journal(struct super_block * sb,
- struct ext3_super_block * es,
+static int ext3_create_journal(struct super_block *sb,
+ struct ext3_super_block *es,
unsigned int journal_inum)
{
journal_t *journal;
int err;
if (sb->s_flags & MS_RDONLY) {
- printk(KERN_ERR "EXT3-fs: readonly filesystem when trying to "
- "create journal.\n");
+ ext3_msg(sb, KERN_ERR,
+ "error: readonly filesystem when trying to "
+ "create journal");
return -EROFS;
}
if (!journal)
return -EINVAL;
- printk(KERN_INFO "EXT3-fs: creating new journal on inode %u\n",
+ ext3_msg(sb, KERN_INFO, "creating new journal on inode %u",
journal_inum);
err = journal_create(journal);
if (err) {
- printk(KERN_ERR "EXT3-fs: error creating journal.\n");
+ ext3_msg(sb, KERN_ERR, "error creating journal");
journal_destroy(journal);
return -EIO;
}
EXT3_SET_COMPAT_FEATURE(sb, EXT3_FEATURE_COMPAT_HAS_JOURNAL);
es->s_journal_inum = cpu_to_le32(journal_inum);
- sb->s_dirt = 1;
/* Make sure we flush the recovery flag to disk. */
ext3_commit_super(sb, es, 1);
return 0;
}
-static void ext3_commit_super (struct super_block * sb,
- struct ext3_super_block * es,
+static int ext3_commit_super(struct super_block *sb,
+ struct ext3_super_block *es,
int sync)
{
struct buffer_head *sbh = EXT3_SB(sb)->s_sbh;
+ int error = 0;
if (!sbh)
- return;
- es->s_wtime = cpu_to_le32(get_seconds());
+ return error;
+ /*
+ * If the file system is mounted read-only, don't update the
+ * superblock write time. This avoids updating the superblock
+ * write time when we are mounting the root file system
+ * read/only but we need to replay the journal; at that point,
+ * for people who are east of GMT and who make their clock
+ * tick in localtime for Windows bug-for-bug compatibility,
+ * the clock is set in the future, and this will cause e2fsck
+ * to complain and force a full file system check.
+ */
+ if (!(sb->s_flags & MS_RDONLY))
+ es->s_wtime = cpu_to_le32(get_seconds());
es->s_free_blocks_count = cpu_to_le32(ext3_count_free_blocks(sb));
es->s_free_inodes_count = cpu_to_le32(ext3_count_free_inodes(sb));
BUFFER_TRACE(sbh, "marking dirty");
mark_buffer_dirty(sbh);
if (sync)
- sync_dirty_buffer(sbh);
+ error = sync_dirty_buffer(sbh);
+ return error;
}
if (journal_flush(journal) < 0)
goto out;
- lock_super(sb);
if (EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER) &&
sb->s_flags & MS_RDONLY) {
EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
- sb->s_dirt = 0;
ext3_commit_super(sb, es, 1);
}
- unlock_super(sb);
out:
journal_unlock_updates(journal);
* has recorded an error from a previous lifetime, move that error to the
* main filesystem now.
*/
-static void ext3_clear_journal_err(struct super_block * sb,
- struct ext3_super_block * es)
+static void ext3_clear_journal_err(struct super_block *sb,
+ struct ext3_super_block *es)
{
journal_t *journal;
int j_errno;
return 0;
journal = EXT3_SB(sb)->s_journal;
- sb->s_dirt = 0;
ret = ext3_journal_force_commit(journal);
return ret;
}
-/*
- * Ext3 always journals updates to the superblock itself, so we don't
- * have to propagate any other updates to the superblock on disk at this
- * point. Just start an async writeback to get the buffers on their way
- * to the disk.
- *
- * This implicitly triggers the writebehind on sync().
- */
-
-static void ext3_write_super (struct super_block * sb)
-{
- if (mutex_trylock(&sb->s_lock) != 0)
- BUG();
- sb->s_dirt = 0;
-}
-
static int ext3_sync_fs(struct super_block *sb, int wait)
{
tid_t target;
- sb->s_dirt = 0;
if (journal_start_commit(EXT3_SB(sb)->s_journal, &target)) {
if (wait)
log_wait_commit(EXT3_SB(sb)->s_journal, target);
* LVM calls this function before a (read-only) snapshot is created. This
* gives us a chance to flush the journal completely and mark the fs clean.
*/
-static void ext3_write_super_lockfs(struct super_block *sb)
+static int ext3_freeze(struct super_block *sb)
{
- sb->s_dirt = 0;
+ int error = 0;
+ journal_t *journal;
if (!(sb->s_flags & MS_RDONLY)) {
- journal_t *journal = EXT3_SB(sb)->s_journal;
+ journal = EXT3_SB(sb)->s_journal;
/* Now we set up the journal barrier. */
journal_lock_updates(journal);
* We don't want to clear needs_recovery flag when we failed
* to flush the journal.
*/
- if (journal_flush(journal) < 0)
- return;
+ error = journal_flush(journal);
+ if (error < 0)
+ goto out;
/* Journal blocked and flushed, clear needs_recovery flag. */
EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
- ext3_commit_super(sb, EXT3_SB(sb)->s_es, 1);
+ error = ext3_commit_super(sb, EXT3_SB(sb)->s_es, 1);
+ if (error)
+ goto out;
}
+ return 0;
+
+out:
+ journal_unlock_updates(journal);
+ return error;
}
/*
* Called by LVM after the snapshot is done. We need to reset the RECOVER
* flag here, even though the filesystem is not technically dirty yet.
*/
-static void ext3_unlockfs(struct super_block *sb)
+static int ext3_unfreeze(struct super_block *sb)
{
if (!(sb->s_flags & MS_RDONLY)) {
lock_super(sb);
unlock_super(sb);
journal_unlock_updates(EXT3_SB(sb)->s_journal);
}
+ return 0;
}
static int ext3_remount (struct super_block * sb, int * flags, char * data)
int i;
#endif
+ lock_kernel();
+
/* Store the original options */
+ lock_super(sb);
old_sb_flags = sb->s_flags;
old_opts.s_mount_opt = sbi->s_mount_opt;
old_opts.s_resuid = sbi->s_resuid;
goto restore_opts;
}
- if (sbi->s_mount_opt & EXT3_MOUNT_ABORT)
+ if (test_opt(sb, ABORT))
ext3_abort(sb, __func__, "Abort forced by user");
sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
- ((sbi->s_mount_opt & EXT3_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
+ (test_opt(sb, POSIX_ACL) ? MS_POSIXACL : 0);
es = sbi->s_es;
if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY) ||
n_blocks_count > le32_to_cpu(es->s_blocks_count)) {
- if (sbi->s_mount_opt & EXT3_MOUNT_ABORT) {
+ if (test_opt(sb, ABORT)) {
err = -EROFS;
goto restore_opts;
}
(sbi->s_mount_state & EXT3_VALID_FS))
es->s_state = cpu_to_le16(sbi->s_mount_state);
- /*
- * We have to unlock super so that we can wait for
- * transactions.
- */
- unlock_super(sb);
ext3_mark_recovery_complete(sb, es);
- lock_super(sb);
} else {
__le32 ret;
if ((ret = EXT3_HAS_RO_COMPAT_FEATURE(sb,
~EXT3_FEATURE_RO_COMPAT_SUPP))) {
- printk(KERN_WARNING "EXT3-fs: %s: couldn't "
- "remount RDWR because of unsupported "
- "optional features (%x).\n",
- sb->s_id, le32_to_cpu(ret));
+ ext3_msg(sb, KERN_WARNING,
+ "warning: couldn't remount RDWR "
+ "because of unsupported optional "
+ "features (%x)", le32_to_cpu(ret));
err = -EROFS;
goto restore_opts;
}
* require a full umount/remount for now.
*/
if (es->s_last_orphan) {
- printk(KERN_WARNING "EXT3-fs: %s: couldn't "
+ ext3_msg(sb, KERN_WARNING, "warning: couldn't "
"remount RDWR because of unprocessed "
"orphan inode list. Please "
- "umount/remount instead.\n",
- sb->s_id);
+ "umount/remount instead.");
err = -EINVAL;
goto restore_opts;
}
old_opts.s_qf_names[i] != sbi->s_qf_names[i])
kfree(old_opts.s_qf_names[i]);
#endif
+ unlock_super(sb);
+ unlock_kernel();
return 0;
restore_opts:
sb->s_flags = old_sb_flags;
sbi->s_qf_names[i] = old_opts.s_qf_names[i];
}
#endif
+ unlock_super(sb);
+ unlock_kernel();
return err;
}
buf->f_bsize = sb->s_blocksize;
buf->f_blocks = le32_to_cpu(es->s_blocks_count) - sbi->s_overhead_last;
buf->f_bfree = percpu_counter_sum_positive(&sbi->s_freeblocks_counter);
- es->s_free_blocks_count = cpu_to_le32(buf->f_bfree);
buf->f_bavail = buf->f_bfree - le32_to_cpu(es->s_r_blocks_count);
if (buf->f_bfree < le32_to_cpu(es->s_r_blocks_count))
buf->f_bavail = 0;
buf->f_files = le32_to_cpu(es->s_inodes_count);
buf->f_ffree = percpu_counter_sum_positive(&sbi->s_freeinodes_counter);
- es->s_free_inodes_count = cpu_to_le32(buf->f_ffree);
buf->f_namelen = EXT3_NAME_LEN;
fsid = le64_to_cpup((void *)es->s_uuid) ^
le64_to_cpup((void *)es->s_uuid + sizeof(u64));
* Process 1 Process 2
* ext3_create() quota_sync()
* journal_start() write_dquot()
- * DQUOT_INIT() down(dqio_mutex)
+ * vfs_dq_init() down(dqio_mutex)
* down(dqio_mutex) journal_start()
*
*/
return sb_dqopt(dquot->dq_sb)->files[dquot->dq_type];
}
-static int ext3_dquot_initialize(struct inode *inode, int type)
-{
- handle_t *handle;
- int ret, err;
-
- /* We may create quota structure so we need to reserve enough blocks */
- handle = ext3_journal_start(inode, 2*EXT3_QUOTA_INIT_BLOCKS(inode->i_sb));
- if (IS_ERR(handle))
- return PTR_ERR(handle);
- ret = dquot_initialize(inode, type);
- err = ext3_journal_stop(handle);
- if (!ret)
- ret = err;
- return ret;
-}
-
-static int ext3_dquot_drop(struct inode *inode)
-{
- handle_t *handle;
- int ret, err;
-
- /* We may delete quota structure so we need to reserve enough blocks */
- handle = ext3_journal_start(inode, 2*EXT3_QUOTA_DEL_BLOCKS(inode->i_sb));
- if (IS_ERR(handle)) {
- /*
- * We call dquot_drop() anyway to at least release references
- * to quota structures so that umount does not hang.
- */
- dquot_drop(inode);
- return PTR_ERR(handle);
- }
- ret = dquot_drop(inode);
- err = ext3_journal_stop(handle);
- if (!ret)
- ret = err;
- return ret;
-}
-
static int ext3_write_dquot(struct dquot *dquot)
{
int ret, err;
* Standard function to be called on quota_on
*/
static int ext3_quota_on(struct super_block *sb, int type, int format_id,
- char *path, int remount)
+ char *name, int remount)
{
int err;
- struct nameidata nd;
+ struct path path;
if (!test_opt(sb, QUOTA))
return -EINVAL;
- /* When remounting, no checks are needed and in fact, path is NULL */
+ /* When remounting, no checks are needed and in fact, name is NULL */
if (remount)
- return vfs_quota_on(sb, type, format_id, path, remount);
+ return vfs_quota_on(sb, type, format_id, name, remount);
- err = path_lookup(path, LOOKUP_FOLLOW, &nd);
+ err = kern_path(name, LOOKUP_FOLLOW, &path);
if (err)
return err;
/* Quotafile not on the same filesystem? */
- if (nd.path.mnt->mnt_sb != sb) {
- path_put(&nd.path);
+ if (path.mnt->mnt_sb != sb) {
+ path_put(&path);
return -EXDEV;
}
/* Journaling quota? */
if (EXT3_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
- "EXT3-fs: Quota file not on filesystem root. "
- "Journaled quota will not work.\n");
+ if (path.dentry->d_parent != sb->s_root)
+ ext3_msg(sb, KERN_WARNING,
+ "warning: Quota file not on filesystem root. "
+ "Journaled quota will not work.");
}
/*
* When we journal data on quota file, we have to flush journal to see
* all updates to the file when we bypass pagecache...
*/
- if (ext3_should_journal_data(nd.path.dentry->d_inode)) {
+ if (ext3_should_journal_data(path.dentry->d_inode)) {
/*
* We don't need to lock updates but journal_flush() could
* otherwise be livelocked...
err = journal_flush(EXT3_SB(sb)->s_journal);
journal_unlock_updates(EXT3_SB(sb)->s_journal);
if (err) {
- path_put(&nd.path);
+ path_put(&path);
return err;
}
}
- err = vfs_quota_on_path(sb, type, format_id, &nd.path);
- path_put(&nd.path);
+ err = vfs_quota_on_path(sb, type, format_id, &path);
+ path_put(&path);
return err;
}
sector_t blk = off >> EXT3_BLOCK_SIZE_BITS(sb);
int err = 0;
int offset = off & (sb->s_blocksize - 1);
- int tocopy;
int journal_quota = EXT3_SB(sb)->s_qf_names[type] != NULL;
- size_t towrite = len;
struct buffer_head *bh;
handle_t *handle = journal_current_handle();
if (!handle) {
- printk(KERN_WARNING "EXT3-fs: Quota write (off=%Lu, len=%Lu)"
- " cancelled because transaction is not started.\n",
+ ext3_msg(sb, KERN_WARNING,
+ "warning: quota write (off=%llu, len=%llu)"
+ " cancelled because transaction is not started.",
+ (unsigned long long)off, (unsigned long long)len);
+ return -EIO;
+ }
+
+ /*
+ * Since we account only one data block in transaction credits,
+ * then it is impossible to cross a block boundary.
+ */
+ if (sb->s_blocksize - offset < len) {
+ ext3_msg(sb, KERN_WARNING, "Quota write (off=%llu, len=%llu)"
+ " cancelled because not block aligned",
(unsigned long long)off, (unsigned long long)len);
return -EIO;
}
mutex_lock_nested(&inode->i_mutex, I_MUTEX_QUOTA);
- while (towrite > 0) {
- tocopy = sb->s_blocksize - offset < towrite ?
- sb->s_blocksize - offset : towrite;
- bh = ext3_bread(handle, inode, blk, 1, &err);
- if (!bh)
+ bh = ext3_bread(handle, inode, blk, 1, &err);
+ if (!bh)
+ goto out;
+ if (journal_quota) {
+ err = ext3_journal_get_write_access(handle, bh);
+ if (err) {
+ brelse(bh);
goto out;
- if (journal_quota) {
- err = ext3_journal_get_write_access(handle, bh);
- if (err) {
- brelse(bh);
- goto out;
- }
}
- lock_buffer(bh);
- memcpy(bh->b_data+offset, data, tocopy);
- flush_dcache_page(bh->b_page);
- unlock_buffer(bh);
- if (journal_quota)
- err = ext3_journal_dirty_metadata(handle, bh);
- else {
- /* Always do at least ordered writes for quotas */
- err = ext3_journal_dirty_data(handle, bh);
- mark_buffer_dirty(bh);
- }
- brelse(bh);
- if (err)
- goto out;
- offset = 0;
- towrite -= tocopy;
- data += tocopy;
- blk++;
}
+ lock_buffer(bh);
+ memcpy(bh->b_data+offset, data, len);
+ flush_dcache_page(bh->b_page);
+ unlock_buffer(bh);
+ if (journal_quota)
+ err = ext3_journal_dirty_metadata(handle, bh);
+ else {
+ /* Always do at least ordered writes for quotas */
+ err = ext3_journal_dirty_data(handle, bh);
+ mark_buffer_dirty(bh);
+ }
+ brelse(bh);
out:
- if (len == towrite) {
+ if (err) {
mutex_unlock(&inode->i_mutex);
return err;
}
- if (inode->i_size < off+len-towrite) {
- i_size_write(inode, off+len-towrite);
+ if (inode->i_size < off + len) {
+ i_size_write(inode, off + len);
EXT3_I(inode)->i_disksize = inode->i_size;
}
inode->i_version++;
inode->i_mtime = inode->i_ctime = CURRENT_TIME;
ext3_mark_inode_dirty(handle, inode);
mutex_unlock(&inode->i_mutex);
- return len - towrite;
+ return len;
}
#endif
Code Review / linux-2.6.git / blobdiff