1 files changed, 87 insertions, 37 deletions

diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 1d40f2bd1970..2ec748ba0bd3 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -22,6 +22,7 @@
 #include <linux/blkdev.h>
 #include <linux/buffer_head.h>
 #include <linux/exportfs.h>
+#include <linux/quotaops.h>
 #include <linux/vfs.h>
 #include <linux/mnt_namespace.h>
 #include <linux/mount.h>
@@ -182,7 +183,7 @@ static int finish_unfinished(struct super_block *s)
                         int ret = reiserfs_quota_on_mount(s, i);
                         if (ret < 0)
                                 reiserfs_warning(s,
-                                                 "reiserfs: cannot turn on journalled quota: error %d",
+                                                 "reiserfs: cannot turn on journaled quota: error %d",
                                                  ret);
                 }
         }
@@ -876,7 +877,9 @@ static int reiserfs_parse_options(struct super_block *s, char *options,	/* strin
                                      mount options were selected. */
                                   unsigned long *blocks,        /* strtol-ed from NNN of resize=NNN */
                                   char **jdev_name,
-                                  unsigned int *commit_max_age)
+                                  unsigned int *commit_max_age,
+                                  char **qf_names,
+                                  unsigned int *qfmt)
 {
         int c;
         char *arg = NULL;
@@ -992,9 +995,11 @@ static int reiserfs_parse_options(struct super_block *s, char *options,	/* strin
                 if (c == 'u' || c == 'g') {
                         int qtype = c == 'u' ? USRQUOTA : GRPQUOTA;
 
-                        if (sb_any_quota_enabled(s)) {
+                        if ((sb_any_quota_enabled(s) ||
+                             sb_any_quota_suspended(s)) &&
+                            (!*arg != !REISERFS_SB(s)->s_qf_names[qtype])) {
                                 reiserfs_warning(s,
-                                                 "reiserfs_parse_options: cannot change journalled quota options when quota turned on.");
+                                                 "reiserfs_parse_options: cannot change journaled quota options when quota turned on.");
                                 return 0;
                         }
                         if (*arg) {     /* Some filename specified? */
@@ -1011,46 +1016,54 @@ static int reiserfs_parse_options(struct super_block *s, char *options,	/* strin
                                                          "reiserfs_parse_options: quotafile must be on filesystem root.");
                                         return 0;
                                 }
-                                REISERFS_SB(s)->s_qf_names[qtype] =
+                                qf_names[qtype] =
                                     kmalloc(strlen(arg) + 1, GFP_KERNEL);
-                                if (!REISERFS_SB(s)->s_qf_names[qtype]) {
+                                if (!qf_names[qtype]) {
                                         reiserfs_warning(s,
                                                          "reiserfs_parse_options: not enough memory for storing quotafile name.");
                                         return 0;
                                 }
-                                strcpy(REISERFS_SB(s)->s_qf_names[qtype], arg);
+                                strcpy(qf_names[qtype], arg);
                                 *mount_options |= 1 << REISERFS_QUOTA;
                         } else {
-                                kfree(REISERFS_SB(s)->s_qf_names[qtype]);
-                                REISERFS_SB(s)->s_qf_names[qtype] = NULL;
+                                if (qf_names[qtype] !=
+                                    REISERFS_SB(s)->s_qf_names[qtype])
+                                        kfree(qf_names[qtype]);
+                                qf_names[qtype] = NULL;
                         }
                 }
                 if (c == 'f') {
                         if (!strcmp(arg, "vfsold"))
-                                REISERFS_SB(s)->s_jquota_fmt = QFMT_VFS_OLD;
+                                *qfmt = QFMT_VFS_OLD;
                         else if (!strcmp(arg, "vfsv0"))
-                                REISERFS_SB(s)->s_jquota_fmt = QFMT_VFS_V0;
+                                *qfmt = QFMT_VFS_V0;
                         else {
                                 reiserfs_warning(s,
                                                  "reiserfs_parse_options: unknown quota format specified.");
                                 return 0;
                         }
+                        if ((sb_any_quota_enabled(s) ||
+                             sb_any_quota_suspended(s)) &&
+                            *qfmt != REISERFS_SB(s)->s_jquota_fmt) {
+                                reiserfs_warning(s,
+                                                 "reiserfs_parse_options: cannot change journaled quota options when quota turned on.");
+                                return 0;
+                        }
                 }
 #else
                 if (c == 'u' || c == 'g' || c == 'f') {
                         reiserfs_warning(s,
-                                         "reiserfs_parse_options: journalled quota options not supported.");
+                                         "reiserfs_parse_options: journaled quota options not supported.");
                         return 0;
                 }
 #endif
         }
 
 #ifdef CONFIG_QUOTA
-        if (!REISERFS_SB(s)->s_jquota_fmt
-            && (REISERFS_SB(s)->s_qf_names[USRQUOTA]
-                || REISERFS_SB(s)->s_qf_names[GRPQUOTA])) {
+        if (!REISERFS_SB(s)->s_jquota_fmt && !*qfmt
+            && (qf_names[USRQUOTA] || qf_names[GRPQUOTA])) {
                 reiserfs_warning(s,
-                                 "reiserfs_parse_options: journalled quota format not specified.");
+                                 "reiserfs_parse_options: journaled quota format not specified.");
                 return 0;
         }
         /* This checking is not precise wrt the quota type but for our purposes it is sufficient */
@@ -1130,6 +1143,21 @@ static void handle_attrs(struct super_block *s)
         }
 }
 
+#ifdef CONFIG_QUOTA
+static void handle_quota_files(struct super_block *s, char **qf_names,
+                               unsigned int *qfmt)
+{
+        int i;
+
+        for (i = 0; i < MAXQUOTAS; i++) {
+                if (qf_names[i] != REISERFS_SB(s)->s_qf_names[i])
+                        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;
+}
+#endif
+
 static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
 {
         struct reiserfs_super_block *rs;
@@ -1141,23 +1169,30 @@ static int reiserfs_remount(struct super_block *s, int *mount_flags, char *arg)
         struct reiserfs_journal *journal = SB_JOURNAL(s);
         char *new_opts = kstrdup(arg, GFP_KERNEL);
         int err;
+        char *qf_names[MAXQUOTAS];
+        unsigned int qfmt = 0;
 #ifdef CONFIG_QUOTA
         int i;
+
+        memcpy(qf_names, REISERFS_SB(s)->s_qf_names, sizeof(qf_names));
 #endif
 
         rs = SB_DISK_SUPER_BLOCK(s);
 
         if (!reiserfs_parse_options
-            (s, arg, &mount_options, &blocks, NULL, &commit_max_age)) {
+            (s, arg, &mount_options, &blocks, NULL, &commit_max_age,
+            qf_names, &qfmt)) {
 #ifdef CONFIG_QUOTA
-                for (i = 0; i < MAXQUOTAS; i++) {
-                        kfree(REISERFS_SB(s)->s_qf_names[i]);
-                        REISERFS_SB(s)->s_qf_names[i] = NULL;
-                }
+                for (i = 0; i < MAXQUOTAS; i++)
+                        if (qf_names[i] != REISERFS_SB(s)->s_qf_names[i])
+                                kfree(qf_names[i]);
 #endif
                 err = -EINVAL;
                 goto out_err;
         }
+#ifdef CONFIG_QUOTA
+        handle_quota_files(s, qf_names, &qfmt);
+#endif
 
         handle_attrs(s);
 
@@ -1570,6 +1605,8 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
         char *jdev_name;
         struct reiserfs_sb_info *sbi;
         int errval = -EINVAL;
+        char *qf_names[MAXQUOTAS] = {};
+        unsigned int qfmt = 0;
 
         save_mount_options(s, data);
 
@@ -1597,9 +1634,12 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
         jdev_name = NULL;
         if (reiserfs_parse_options
             (s, (char *)data, &(sbi->s_mount_opt), &blocks, &jdev_name,
-             &commit_max_age) == 0) {
+             &commit_max_age, qf_names, &qfmt) == 0) {
                 goto error;
         }
+#ifdef CONFIG_QUOTA
+        handle_quota_files(s, qf_names, &qfmt);
+#endif
 
         if (blocks) {
                 SWARN(silent, s, "jmacd-7: reiserfs_fill_super: resize option "
@@ -1819,7 +1859,7 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 
         return (0);
 
-      error:
+error:
         if (jinit_done) {       /* kill the commit thread, free journal ram */
                 journal_release_error(NULL, s);
         }
@@ -1830,10 +1870,8 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 #ifdef CONFIG_QUOTA
         {
                 int j;
-                for (j = 0; j < MAXQUOTAS; j++) {
-                        kfree(sbi->s_qf_names[j]);
-                        sbi->s_qf_names[j] = NULL;
-                }
+                for (j = 0; j < MAXQUOTAS; j++)
+                        kfree(qf_names[j]);
         }
 #endif
         kfree(sbi);
@@ -1980,7 +2018,7 @@ static int reiserfs_release_dquot(struct dquot *dquot)
 
 static int reiserfs_mark_dquot_dirty(struct dquot *dquot)
 {
-        /* Are we journalling quotas? */
+        /* Are we journaling quotas? */
         if (REISERFS_SB(dquot->dq_sb)->s_qf_names[USRQUOTA] ||
             REISERFS_SB(dquot->dq_sb)->s_qf_names[GRPQUOTA]) {
                 dquot_mark_dquot_dirty(dquot);
@@ -2026,6 +2064,7 @@ static int reiserfs_quota_on(struct super_block *sb, int type, int format_id,
         int err;
         struct nameidata nd;
         struct inode *inode;
+        struct reiserfs_transaction_handle th;
 
         if (!(REISERFS_SB(sb)->s_mount_opt & (1 << REISERFS_QUOTA)))
                 return -EINVAL;
@@ -2053,17 +2092,28 @@ static int reiserfs_quota_on(struct super_block *sb, int type, int format_id,
                 }
                 mark_inode_dirty(inode);
         }
-        /* Not journalling quota? No more tests needed... */
-        if (!REISERFS_SB(sb)->s_qf_names[USRQUOTA] &&
-            !REISERFS_SB(sb)->s_qf_names[GRPQUOTA]) {
-                path_put(&nd.path);
-                return vfs_quota_on(sb, type, format_id, path, 0);
-        }
-        /* Quotafile not of fs root? */
-        if (nd.path.dentry->d_parent->d_inode != sb->s_root->d_inode)
-                reiserfs_warning(sb,
+        /* Journaling quota? */
+        if (REISERFS_SB(sb)->s_qf_names[type]) {
+                /* Quotafile not of fs root? */
+                if (nd.path.dentry->d_parent->d_inode != sb->s_root->d_inode)
+                        reiserfs_warning(sb,
                                  "reiserfs: Quota file not on filesystem root. "
                                  "Journalled 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 (reiserfs_file_data_log(inode)) {
+                /* Just start temporary transaction and finish it */
+                err = journal_begin(&th, sb, 1);
+                if (err)
+                        return err;
+                err = journal_end_sync(&th, sb, 1);
+                if (err)
+                        return err;
+        }
         path_put(&nd.path);
         return vfs_quota_on(sb, type, format_id, path, 0);
 }