#include <linux/mount.h>
#include <linux/namei.h>
#include <linux/crc32.h>
+#include <linux/seq_file.h>
struct file_system_type reiserfs_fs_type;
static int reiserfs_remount(struct super_block *s, int *flags, char *data);
static int reiserfs_statfs(struct dentry *dentry, struct kstatfs *buf);
+void show_alloc_options(struct seq_file *seq, struct super_block *s);
static int reiserfs_sync_fs(struct super_block *s, int wait)
{
static void reiserfs_kill_sb(struct super_block *s)
{
if (REISERFS_SB(s)) {
- if (REISERFS_SB(s)->xattr_root) {
- d_invalidate(REISERFS_SB(s)->xattr_root);
- dput(REISERFS_SB(s)->xattr_root);
- REISERFS_SB(s)->xattr_root = NULL;
- }
- if (REISERFS_SB(s)->priv_root) {
- d_invalidate(REISERFS_SB(s)->priv_root);
- dput(REISERFS_SB(s)->priv_root);
- REISERFS_SB(s)->priv_root = NULL;
- }
+ /*
+ * Force any pending inode evictions to occur now. Any
+ * inodes to be removed that have extended attributes
+ * associated with them need to clean them up before
+ * we can release the extended attribute root dentries.
+ * shrink_dcache_for_umount will BUG if we don't release
+ * those before it's called so ->put_super is too late.
+ */
+ shrink_dcache_sb(s);
+
+ dput(REISERFS_SB(s)->xattr_root);
+ REISERFS_SB(s)->xattr_root = NULL;
+ dput(REISERFS_SB(s)->priv_root);
+ REISERFS_SB(s)->priv_root = NULL;
}
kill_block_super(s);
static void reiserfs_i_callback(struct rcu_head *head)
{
struct inode *inode = container_of(head, struct inode, i_rcu);
- INIT_LIST_HEAD(&inode->i_dentry);
kmem_cache_free(reiserfs_inode_cachep, REISERFS_I(inode));
}
reiserfs_write_unlock_once(inode->i_sb, lock_depth);
}
+static int reiserfs_show_options(struct seq_file *seq, struct dentry *root)
+{
+ struct super_block *s = root->d_sb;
+ struct reiserfs_journal *journal = SB_JOURNAL(s);
+ long opts = REISERFS_SB(s)->s_mount_opt;
+
+ if (opts & (1 << REISERFS_LARGETAIL))
+ seq_puts(seq, ",tails=on");
+ else if (!(opts & (1 << REISERFS_SMALLTAIL)))
+ seq_puts(seq, ",notail");
+ /* tails=small is default so we don't show it */
+
+ if (!(opts & (1 << REISERFS_BARRIER_FLUSH)))
+ seq_puts(seq, ",barrier=none");
+ /* barrier=flush is default so we don't show it */
+
+ if (opts & (1 << REISERFS_ERROR_CONTINUE))
+ seq_puts(seq, ",errors=continue");
+ else if (opts & (1 << REISERFS_ERROR_PANIC))
+ seq_puts(seq, ",errors=panic");
+ /* errors=ro is default so we don't show it */
+
+ if (opts & (1 << REISERFS_DATA_LOG))
+ seq_puts(seq, ",data=journal");
+ else if (opts & (1 << REISERFS_DATA_WRITEBACK))
+ seq_puts(seq, ",data=writeback");
+ /* data=ordered is default so we don't show it */
+
+ if (opts & (1 << REISERFS_ATTRS))
+ seq_puts(seq, ",attrs");
+
+ if (opts & (1 << REISERFS_XATTRS_USER))
+ seq_puts(seq, ",user_xattr");
+
+ if (opts & (1 << REISERFS_EXPOSE_PRIVROOT))
+ seq_puts(seq, ",expose_privroot");
+
+ if (opts & (1 << REISERFS_POSIXACL))
+ seq_puts(seq, ",acl");
+
+ if (REISERFS_SB(s)->s_jdev)
+ seq_printf(seq, ",jdev=%s", REISERFS_SB(s)->s_jdev);
+
+ if (journal->j_max_commit_age != journal->j_default_max_commit_age)
+ seq_printf(seq, ",commit=%d", journal->j_max_commit_age);
+
+#ifdef CONFIG_QUOTA
+ if (REISERFS_SB(s)->s_qf_names[USRQUOTA])
+ seq_printf(seq, ",usrjquota=%s", REISERFS_SB(s)->s_qf_names[USRQUOTA]);
+ else if (opts & (1 << REISERFS_USRQUOTA))
+ seq_puts(seq, ",usrquota");
+ if (REISERFS_SB(s)->s_qf_names[GRPQUOTA])
+ seq_printf(seq, ",grpjquota=%s", REISERFS_SB(s)->s_qf_names[GRPQUOTA]);
+ else if (opts & (1 << REISERFS_GRPQUOTA))
+ seq_puts(seq, ",grpquota");
+ if (REISERFS_SB(s)->s_jquota_fmt) {
+ if (REISERFS_SB(s)->s_jquota_fmt == QFMT_VFS_OLD)
+ seq_puts(seq, ",jqfmt=vfsold");
+ else if (REISERFS_SB(s)->s_jquota_fmt == QFMT_VFS_V0)
+ seq_puts(seq, ",jqfmt=vfsv0");
+ }
+#endif
+
+ /* Block allocator options */
+ if (opts & (1 << REISERFS_NO_BORDER))
+ seq_puts(seq, ",block-allocator=noborder");
+ if (opts & (1 << REISERFS_NO_UNHASHED_RELOCATION))
+ seq_puts(seq, ",block-allocator=no_unhashed_relocation");
+ if (opts & (1 << REISERFS_HASHED_RELOCATION))
+ seq_puts(seq, ",block-allocator=hashed_relocation");
+ if (opts & (1 << REISERFS_TEST4))
+ seq_puts(seq, ",block-allocator=test4");
+ show_alloc_options(seq, s);
+ return 0;
+}
+
#ifdef CONFIG_QUOTA
static ssize_t reiserfs_quota_write(struct super_block *, int, const char *,
size_t, loff_t);
.unfreeze_fs = reiserfs_unfreeze,
.statfs = reiserfs_statfs,
.remount_fs = reiserfs_remount,
- .show_options = generic_show_options,
+ .show_options = reiserfs_show_options,
#ifdef CONFIG_QUOTA
.quota_read = reiserfs_quota_read,
.quota_write = reiserfs_quota_write,
{"jdev",.arg_required = 'j',.values = NULL},
{"nolargeio",.arg_required = 'w',.values = NULL},
{"commit",.arg_required = 'c',.values = NULL},
- {"usrquota",.setmask = 1 << REISERFS_QUOTA},
- {"grpquota",.setmask = 1 << REISERFS_QUOTA},
- {"noquota",.clrmask = 1 << REISERFS_QUOTA},
+ {"usrquota",.setmask = 1 << REISERFS_USRQUOTA},
+ {"grpquota",.setmask = 1 << REISERFS_GRPQUOTA},
+ {"noquota",.clrmask = 1 << REISERFS_USRQUOTA | 1 << REISERFS_GRPQUOTA},
{"errors",.arg_required = 'e',.values = error_actions},
{"usrjquota",.arg_required =
'u' | (1 << REISERFS_OPT_ALLOWEMPTY),.values = NULL},
return 0;
}
strcpy(qf_names[qtype], arg);
- *mount_options |= 1 << REISERFS_QUOTA;
+ if (qtype == USRQUOTA)
+ *mount_options |= 1 << REISERFS_USRQUOTA;
+ else
+ *mount_options |= 1 << REISERFS_GRPQUOTA;
} else {
if (qf_names[qtype] !=
REISERFS_SB(s)->s_qf_names[qtype])
kfree(qf_names[qtype]);
qf_names[qtype] = NULL;
+ if (qtype == USRQUOTA)
+ *mount_options &= ~(1 << REISERFS_USRQUOTA);
+ else
+ *mount_options &= ~(1 << REISERFS_GRPQUOTA);
}
}
if (c == 'f') {
"journaled quota format not specified.");
return 0;
}
- /* This checking is not precise wrt the quota type but for our purposes it is sufficient */
- if (!(*mount_options & (1 << REISERFS_QUOTA))
- && sb_any_quota_loaded(s)) {
+ if ((!(*mount_options & (1 << REISERFS_USRQUOTA)) &&
+ sb_has_quota_loaded(s, USRQUOTA)) ||
+ (!(*mount_options & (1 << REISERFS_GRPQUOTA)) &&
+ sb_has_quota_loaded(s, GRPQUOTA))) {
reiserfs_warning(s, "super-6516", "quota options must "
"be present when quota is turned on.");
return 0;
kfree(REISERFS_SB(s)->s_qf_names[i]);
REISERFS_SB(s)->s_qf_names[i] = qf_names[i];
}
- REISERFS_SB(s)->s_jquota_fmt = *qfmt;
+ if (*qfmt)
+ REISERFS_SB(s)->s_jquota_fmt = *qfmt;
}
#endif
safe_mask |= 1 << REISERFS_ERROR_RO;
safe_mask |= 1 << REISERFS_ERROR_CONTINUE;
safe_mask |= 1 << REISERFS_ERROR_PANIC;
- safe_mask |= 1 << REISERFS_QUOTA;
+ safe_mask |= 1 << REISERFS_USRQUOTA;
+ safe_mask |= 1 << REISERFS_GRPQUOTA;
/* Update the bitmask, taking care to keep
* the bits we're not allowed to change here */
static int reread_meta_blocks(struct super_block *s)
{
ll_rw_block(READ, 1, &(SB_BUFFER_WITH_SB(s)));
- reiserfs_write_unlock(s);
wait_on_buffer(SB_BUFFER_WITH_SB(s));
- reiserfs_write_lock(s);
if (!buffer_uptodate(SB_BUFFER_WITH_SB(s))) {
reiserfs_warning(s, "reiserfs-2504", "error reading the super");
return 1;
mutex_init(&REISERFS_SB(s)->lock);
REISERFS_SB(s)->lock_depth = -1;
- /*
- * This function is called with the bkl, which also was the old
- * locking used here.
- * do_journal_begin() will soon check if we hold the lock (ie: was the
- * bkl). This is likely because do_journal_begin() has several another
- * callers because at this time, it doesn't seem to be necessary to
- * protect against anything.
- * Anyway, let's be conservative and lock for now.
- */
- reiserfs_write_lock(s);
-
jdev_name = NULL;
if (reiserfs_parse_options
(s, (char *)data, &(sbi->s_mount_opt), &blocks, &jdev_name,
&commit_max_age, qf_names, &qfmt) == 0) {
- goto error;
+ goto error_unlocked;
+ }
+ if (jdev_name && jdev_name[0]) {
+ REISERFS_SB(s)->s_jdev = kstrdup(jdev_name, GFP_KERNEL);
+ if (!REISERFS_SB(s)->s_jdev) {
+ SWARN(silent, s, "", "Cannot allocate memory for "
+ "journal device name");
+ goto error;
+ }
}
#ifdef CONFIG_QUOTA
handle_quota_files(s, qf_names, &qfmt);
if (blocks) {
SWARN(silent, s, "jmacd-7", "resize option for remount only");
- goto error;
+ goto error_unlocked;
}
/* try old format (undistributed bitmap, super block in 8-th 1k block of a device) */
else if (read_super_block(s, REISERFS_DISK_OFFSET_IN_BYTES)) {
SWARN(silent, s, "sh-2021", "can not find reiserfs on %s",
reiserfs_bdevname(s));
- goto error;
+ goto error_unlocked;
}
rs = SB_DISK_SUPER_BLOCK(s);
"or increase size of your LVM partition");
SWARN(silent, s, "", "Or may be you forgot to "
"reboot after fdisk when it told you to");
- goto error;
+ goto error_unlocked;
}
sbi->s_mount_state = SB_REISERFS_STATE(s);
if ((errval = reiserfs_init_bitmap_cache(s))) {
SWARN(silent, s, "jmacd-8", "unable to read bitmap");
- goto error;
+ goto error_unlocked;
}
+
errval = -EINVAL;
#ifdef CONFIG_REISERFS_CHECK
SWARN(silent, s, "", "CONFIG_REISERFS_CHECK is set ON");
if (reiserfs_barrier_flush(s)) {
printk("reiserfs: using flush barriers\n");
}
+
// set_device_ro(s->s_dev, 1) ;
if (journal_init(s, jdev_name, old_format, commit_max_age)) {
SWARN(silent, s, "sh-2022",
"unable to initialize journal space");
- goto error;
+ goto error_unlocked;
} else {
jinit_done = 1; /* once this is set, journal_release must be called
** if we error out of the mount
*/
}
+
if (reread_meta_blocks(s)) {
SWARN(silent, s, "jmacd-9",
"unable to reread meta blocks after journal init");
- goto error;
+ goto error_unlocked;
}
if (replay_only(s))
- goto error;
+ goto error_unlocked;
if (bdev_read_only(s->s_bdev) && !(s->s_flags & MS_RDONLY)) {
SWARN(silent, s, "clm-7000",
reiserfs_init_locked_inode, (void *)(&args));
if (!root_inode) {
SWARN(silent, s, "jmacd-10", "get root inode failed");
- goto error;
+ goto error_unlocked;
}
+ /*
+ * This path assumed to be called with the BKL in the old times.
+ * Now we have inherited the big reiserfs lock from it and many
+ * reiserfs helpers called in the mount path and elsewhere require
+ * this lock to be held even if it's not always necessary. Let's be
+ * conservative and hold it early. The window can be reduced after
+ * careful review of the code.
+ */
+ reiserfs_write_lock(s);
+
if (root_inode->i_state & I_NEW) {
reiserfs_read_locked_inode(root_inode, &args);
unlock_new_inode(root_inode);
}
- s->s_root = d_alloc_root(root_inode);
- if (!s->s_root) {
- iput(root_inode);
+ s->s_root = d_make_root(root_inode);
+ if (!s->s_root)
goto error;
- }
// define and initialize hash function
sbi->s_hash_function = hash_function(s);
if (sbi->s_hash_function == NULL) {
return (0);
error:
- if (jinit_done) { /* kill the commit thread, free journal ram */
+ reiserfs_write_unlock(s);
+
+error_unlocked:
+ /* kill the commit thread, free journal ram */
+ if (jinit_done) {
+ reiserfs_write_lock(s);
journal_release_error(NULL, s);
+ reiserfs_write_unlock(s);
}
- reiserfs_write_unlock(s);
-
reiserfs_free_bitmap_cache(s);
if (SB_BUFFER_WITH_SB(s))
brelse(SB_BUFFER_WITH_SB(s));
int err;
struct inode *inode;
struct reiserfs_transaction_handle th;
+ int opt = type == USRQUOTA ? REISERFS_USRQUOTA : REISERFS_GRPQUOTA;
- if (!(REISERFS_SB(sb)->s_mount_opt & (1 << REISERFS_QUOTA)))
+ if (!(REISERFS_SB(sb)->s_mount_opt & (1 << opt)))
return -EINVAL;
/* Quotafile not on the same filesystem? */
- if (path->mnt->mnt_sb != sb) {
+ if (path->dentry->d_sb != sb) {
err = -EXDEV;
goto out;
}
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blobdiff