From 57f73c2c89a5d3b2ed87201c8100d1fa989a1a65 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Mon, 16 Apr 2012 18:55:26 -0400 Subject: ext4: fix handling of journalled quota options Commit 26092bf5 broke handling of journalled quota mount options by trying to parse argument of every mount option as a number. Fix this by dealing with the quota options before we call match_int(). Thanks to Jan Kara for discovering this regression. Signed-off-by: "Theodore Ts'o" Reviewed-by: Jan Kara --- fs/ext4/super.c | 32 +++++++++++++++----------------- 1 file changed, 15 insertions(+), 17 deletions(-) diff --git a/fs/ext4/super.c b/fs/ext4/super.c index ef7db5044262..6da193564e43 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1305,20 +1305,20 @@ static int set_qf_name(struct super_block *sb, int qtype, substring_t *args) ext4_msg(sb, KERN_ERR, "Cannot change journaled " "quota options when quota turned on"); - return 0; + return -1; } qname = match_strdup(args); if (!qname) { ext4_msg(sb, KERN_ERR, "Not enough memory for storing quotafile name"); - return 0; + return -1; } if (sbi->s_qf_names[qtype] && strcmp(sbi->s_qf_names[qtype], qname)) { ext4_msg(sb, KERN_ERR, "%s quota file already specified", QTYPE2NAME(qtype)); kfree(qname); - return 0; + return -1; } sbi->s_qf_names[qtype] = qname; if (strchr(sbi->s_qf_names[qtype], '/')) { @@ -1326,7 +1326,7 @@ static int set_qf_name(struct super_block *sb, int qtype, substring_t *args) "quotafile must be on filesystem root"); kfree(sbi->s_qf_names[qtype]); sbi->s_qf_names[qtype] = NULL; - return 0; + return -1; } set_opt(sb, QUOTA); return 1; @@ -1341,7 +1341,7 @@ static int clear_qf_name(struct super_block *sb, int qtype) sbi->s_qf_names[qtype]) { ext4_msg(sb, KERN_ERR, "Cannot change journaled quota options" " when quota turned on"); - return 0; + return -1; } /* * The space will be released later when all options are confirmed @@ -1450,6 +1450,16 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token, const struct mount_opts *m; int arg = 0; +#ifdef CONFIG_QUOTA + if (token == Opt_usrjquota) + return set_qf_name(sb, USRQUOTA, &args[0]); + else if (token == Opt_grpjquota) + return set_qf_name(sb, GRPQUOTA, &args[0]); + else if (token == Opt_offusrjquota) + return clear_qf_name(sb, USRQUOTA); + else if (token == Opt_offgrpjquota) + return clear_qf_name(sb, GRPQUOTA); +#endif if (args->from && match_int(args, &arg)) return -1; switch (token) { @@ -1549,18 +1559,6 @@ static int handle_mount_opt(struct super_block *sb, char *opt, int token, sbi->s_mount_opt |= m->mount_opt; } #ifdef CONFIG_QUOTA - } else if (token == Opt_usrjquota) { - if (!set_qf_name(sb, USRQUOTA, &args[0])) - return -1; - } else if (token == Opt_grpjquota) { - if (!set_qf_name(sb, GRPQUOTA, &args[0])) - return -1; - } else if (token == Opt_offusrjquota) { - if (!clear_qf_name(sb, USRQUOTA)) - return -1; - } else if (token == Opt_offgrpjquota) { - if (!clear_qf_name(sb, GRPQUOTA)) - return -1; } else if (m->flags & MOPT_QFMT) { if (sb_any_quota_loaded(sb) && sbi->s_jquota_fmt != m->mount_opt) { -- cgit v1.2.3-59-g8ed1b