2006-10-04 07:51:29

by Vasily Averin

[permalink] [raw]
Subject: [PATCH 2.6.18] ext2: errors behaviour fix

EXT2_ERRORS_CONTINUE should be read from the superblock as default value for
error behaviour.
parse_option() should clean the alternative options and should not change
default value taken from the superblock.

Signed-off-by: Vasily Averin <[email protected]>
Acked-by: Kirill Korotaev <[email protected]>

--- linux-2.6.18/fs/ext2/super.c.e2erop 2006-09-20 07:42:06.000000000 +0400
+++ linux-2.6.18/fs/ext2/super.c 2006-10-03 15:50:31.000000000 +0400
@@ -365,7 +365,6 @@ static int parse_options (char * options
{
char * p;
substring_t args[MAX_OPT_ARGS];
- unsigned long kind = EXT2_MOUNT_ERRORS_CONT;
int option;

if (!options)
@@ -405,13 +404,19 @@ static int parse_options (char * options
/* *sb_block = match_int(&args[0]); */
break;
case Opt_err_panic:
- kind = EXT2_MOUNT_ERRORS_PANIC;
+ clear_opt (sbi->s_mount_opt, ERRORS_CONT);
+ clear_opt (sbi->s_mount_opt, ERRORS_RO);
+ set_opt (sbi->s_mount_opt, ERRORS_PANIC);
break;
case Opt_err_ro:
- kind = EXT2_MOUNT_ERRORS_RO;
+ clear_opt (sbi->s_mount_opt, ERRORS_CONT);
+ clear_opt (sbi->s_mount_opt, ERRORS_PANIC);
+ set_opt (sbi->s_mount_opt, ERRORS_RO);
break;
case Opt_err_cont:
- kind = EXT2_MOUNT_ERRORS_CONT;
+ clear_opt (sbi->s_mount_opt, ERRORS_RO);
+ clear_opt (sbi->s_mount_opt, ERRORS_PANIC);
+ set_opt (sbi->s_mount_opt, ERRORS_CONT);
break;
case Opt_nouid32:
set_opt (sbi->s_mount_opt, NO_UID32);
@@ -490,7 +495,6 @@ static int parse_options (char * options
return 0;
}
}
- sbi->s_mount_opt |= kind;
return 1;
}

@@ -710,6 +714,8 @@ static int ext2_fill_super(struct super_
set_opt(sbi->s_mount_opt, ERRORS_PANIC);
else if (le16_to_cpu(sbi->s_es->s_errors) == EXT2_ERRORS_RO)
set_opt(sbi->s_mount_opt, ERRORS_RO);
+ else
+ set_opt(sbi->s_mount_opt, ERRORS_CONT);

sbi->s_resuid = le16_to_cpu(es->s_def_resuid);
sbi->s_resgid = le16_to_cpu(es->s_def_resgid);