]> www.pilppa.org Git - linux-2.6-omap-h63xx.git/blobdiff - fs/ext4/super.c
ext4: move headers out of include/linux
[linux-2.6-omap-h63xx.git] / fs / ext4 / super.c
index 13383ba18f1d72d1440a90e021bf21bffb24d039..3435184114c4fb008c07890e078335afa356ef1a 100644 (file)
@@ -21,8 +21,6 @@
 #include <linux/fs.h>
 #include <linux/time.h>
 #include <linux/jbd2.h>
-#include <linux/ext4_fs.h>
-#include <linux/ext4_jbd2.h>
 #include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/blkdev.h>
 #include <linux/seq_file.h>
 #include <linux/log2.h>
 #include <linux/crc16.h>
-
 #include <asm/uaccess.h>
 
+#include "ext4.h"
+#include "ext4_jbd2.h"
 #include "xattr.h"
 #include "acl.h"
 #include "namei.h"
@@ -135,7 +134,7 @@ handle_t *ext4_journal_start_sb(struct super_block *sb, int nblocks)
         * take the FS itself readonly cleanly. */
        journal = EXT4_SB(sb)->s_journal;
        if (is_journal_aborted(journal)) {
-               ext4_abort(sb, __FUNCTION__,
+               ext4_abort(sb, __func__,
                           "Detected aborted journal");
                return ERR_PTR(-EROFS);
        }
@@ -355,7 +354,7 @@ void ext4_update_dynamic_rev(struct super_block *sb)
        if (le32_to_cpu(es->s_rev_level) > EXT4_GOOD_OLD_REV)
                return;
 
-       ext4_warning(sb, __FUNCTION__,
+       ext4_warning(sb, __func__,
                     "updating to rev %d because of new feature flag, "
                     "running e2fsck is recommended",
                     EXT4_DYNAMIC_REV);
@@ -813,7 +812,8 @@ static int ext4_acquire_dquot(struct dquot *dquot);
 static int ext4_release_dquot(struct dquot *dquot);
 static int ext4_mark_dquot_dirty(struct dquot *dquot);
 static int ext4_write_info(struct super_block *sb, int type);
-static int ext4_quota_on(struct super_block *sb, int type, int format_id, char *path);
+static int ext4_quota_on(struct super_block *sb, int type, int format_id,
+                               char *path, int remount);
 static int ext4_quota_on_mount(struct super_block *sb, int type);
 static ssize_t ext4_quota_read(struct super_block *sb, int type, char *data,
                               size_t len, loff_t off);
@@ -944,8 +944,8 @@ static match_table_t tokens = {
        {Opt_mballoc, "mballoc"},
        {Opt_nomballoc, "nomballoc"},
        {Opt_stripe, "stripe=%u"},
-       {Opt_err, NULL},
        {Opt_resize, "resize"},
+       {Opt_err, NULL},
 };
 
 static ext4_fsblk_t get_sb_block(void **data)
@@ -1387,11 +1387,11 @@ static int ext4_setup_super(struct super_block *sb, struct ext4_super_block *es,
                 * a plain journaled filesystem we can keep it set as
                 * valid forever! :)
                 */
-       es->s_state = cpu_to_le16(le16_to_cpu(es->s_state) & ~EXT4_VALID_FS);
+       es->s_state &= cpu_to_le16(~EXT4_VALID_FS);
 #endif
        if (!(__s16) le16_to_cpu(es->s_max_mnt_count))
                es->s_max_mnt_count = cpu_to_le16(EXT4_DFL_MAX_MNT_COUNT);
-       es->s_mnt_count=cpu_to_le16(le16_to_cpu(es->s_mnt_count) + 1);
+       le16_add_cpu(&es->s_mnt_count, 1);
        es->s_mtime = cpu_to_le32(get_seconds());
        ext4_update_dynamic_rev(sb);
        EXT4_SET_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_RECOVER);
@@ -1510,7 +1510,7 @@ static int ext4_check_descriptors(struct super_block *sb)
                        return 0;
                }
                if (!ext4_group_desc_csum_verify(sbi, i, gdp)) {
-                       ext4_error(sb, __FUNCTION__,
+                       ext4_error(sb, __func__,
                                   "Checksum for group %lu failed (%u!=%u)\n",
                                    i, le16_to_cpu(ext4_group_desc_csum(sbi, i,
                                    gdp)), le16_to_cpu(gdp->bg_checksum));
@@ -1593,8 +1593,8 @@ static void ext4_orphan_cleanup (struct super_block * sb,
        while (es->s_last_orphan) {
                struct inode *inode;
 
-               if (!(inode =
-                     ext4_orphan_get(sb, le32_to_cpu(es->s_last_orphan)))) {
+               inode = ext4_orphan_get(sb, le32_to_cpu(es->s_last_orphan));
+               if (IS_ERR(inode)) {
                        es->s_last_orphan = 0;
                        break;
                }
@@ -1604,7 +1604,7 @@ static void ext4_orphan_cleanup (struct super_block * sb,
                if (inode->i_nlink) {
                        printk(KERN_DEBUG
                                "%s: truncating inode %lu to %Ld bytes\n",
-                               __FUNCTION__, inode->i_ino, inode->i_size);
+                               __func__, inode->i_ino, inode->i_size);
                        jbd_debug(2, "truncating inode %lu to %Ld bytes\n",
                                  inode->i_ino, inode->i_size);
                        ext4_truncate(inode);
@@ -1612,7 +1612,7 @@ static void ext4_orphan_cleanup (struct super_block * sb,
                } else {
                        printk(KERN_DEBUG
                                "%s: deleting unreferenced inode %lu\n",
-                               __FUNCTION__, inode->i_ino);
+                               __func__, inode->i_ino);
                        jbd_debug(2, "deleting unreferenced inode %lu\n",
                                  inode->i_ino);
                        nr_orphans++;
@@ -1632,7 +1632,7 @@ static void ext4_orphan_cleanup (struct super_block * sb,
        /* Turn quotas off */
        for (i = 0; i < MAXQUOTAS; i++) {
                if (sb_dqopt(sb)->files[i])
-                       vfs_quota_off(sb, i);
+                       vfs_quota_off(sb, i, 0);
        }
 #endif
        sb->s_flags = s_flags; /* Restore MS_RDONLY status */
@@ -2698,9 +2698,9 @@ static void ext4_clear_journal_err(struct super_block * sb,
                char nbuf[16];
 
                errstr = ext4_decode_error(sb, j_errno, nbuf);
-               ext4_warning(sb, __FUNCTION__, "Filesystem error recorded "
+               ext4_warning(sb, __func__, "Filesystem error recorded "
                             "from previous mount: %s", errstr);
-               ext4_warning(sb, __FUNCTION__, "Marking fs in need of "
+               ext4_warning(sb, __func__, "Marking fs in need of "
                             "filesystem check.");
 
                EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
@@ -2827,7 +2827,7 @@ static int ext4_remount (struct super_block * sb, int * flags, char * data)
        }
 
        if (sbi->s_mount_opt & EXT4_MOUNT_ABORT)
-               ext4_abort(sb, __FUNCTION__, "Abort forced by user");
+               ext4_abort(sb, __func__, "Abort forced by user");
 
        sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
                ((sbi->s_mount_opt & EXT4_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
@@ -3039,8 +3039,14 @@ static int ext4_dquot_drop(struct inode *inode)
 
        /* We may delete quota structure so we need to reserve enough blocks */
        handle = ext4_journal_start(inode, 2*EXT4_QUOTA_DEL_BLOCKS(inode->i_sb));
-       if (IS_ERR(handle))
+       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 = ext4_journal_stop(handle);
        if (!ret)
@@ -3143,7 +3149,7 @@ static int ext4_quota_on_mount(struct super_block *sb, int type)
  * Standard function to be called on quota_on
  */
 static int ext4_quota_on(struct super_block *sb, int type, int format_id,
-                        char *path)
+                        char *path, int remount)
 {
        int err;
        struct nameidata nd;
@@ -3151,9 +3157,9 @@ 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])
-               return vfs_quota_on(sb, type, format_id, path);
+       if ((!EXT4_SB(sb)->s_qf_names[USRQUOTA] &&
+           !EXT4_SB(sb)->s_qf_names[GRPQUOTA]) || remount)
+               return vfs_quota_on(sb, type, format_id, path, remount);
        err = path_lookup(path, LOOKUP_FOLLOW, &nd);
        if (err)
                return err;
@@ -3168,7 +3174,7 @@ static int ext4_quota_on(struct super_block *sb, int type, int format_id,
                        "EXT4-fs: Quota file not on filesystem root. "
                        "Journalled quota will not work.\n");
        path_put(&nd.path);
-       return vfs_quota_on(sb, type, format_id, path);
+       return vfs_quota_on(sb, type, format_id, path, remount);
 }
 
 /* Read data from quotafile - avoid pagecache and such because we cannot afford