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authorDenis Karpov <ext-denis.2.karpov@nokia.com>2009-06-04 02:34:22 +0900
committerOGAWA Hirofumi <hirofumi@mail.parknet.co.jp>2009-06-04 02:34:51 +0900
commit85c7859190c4197a7c34066db14c25903c401187 (patch)
tree9cf54e894f52eb1edfd35daeff66bfb5697b8360 /fs/fat/inode.c
parent9fa7eb283c5cdc2b0f4a8cfe6387ed82e5e9a3d3 (diff)
FAT: add 'errors' mount option
On severe errors FAT remounts itself in read-only mode. Allow to specify FAT fs desired behavior through 'errors' mount option: panic, continue or remount read-only. `mount -t [fat|vfat] -o errors=[panic,remount-ro,continue] \ <bdev> <mount point>` This is analog to ext2 fs 'errors' mount option. Signed-off-by: Denis Karpov <ext-denis.2.karpov@nokia.com> Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Diffstat (limited to 'fs/fat/inode.c')
-rw-r--r--fs/fat/inode.c28
1 files changed, 24 insertions, 4 deletions
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 296785a0dec8..2b9052265e3e 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -76,7 +76,7 @@ static inline int __fat_get_block(struct inode *inode, sector_t iblock,
return 0;
if (iblock != MSDOS_I(inode)->mmu_private >> sb->s_blocksize_bits) {
- fat_fs_panic(sb, "corrupted file size (i_pos %lld, %lld)",
+ fat_fs_error(sb, "corrupted file size (i_pos %lld, %lld)",
MSDOS_I(inode)->i_pos, MSDOS_I(inode)->mmu_private);
return -EIO;
}
@@ -834,6 +834,12 @@ static int fat_show_options(struct seq_file *m, struct vfsmount *mnt)
seq_puts(m, ",flush");
if (opts->tz_utc)
seq_puts(m, ",tz=UTC");
+ if (opts->errors == FAT_ERRORS_CONT)
+ seq_puts(m, ",errors=continue");
+ else if (opts->errors == FAT_ERRORS_PANIC)
+ seq_puts(m, ",errors=panic");
+ else
+ seq_puts(m, ",errors=remount-ro");
return 0;
}
@@ -846,7 +852,8 @@ enum {
Opt_charset, Opt_shortname_lower, Opt_shortname_win95,
Opt_shortname_winnt, Opt_shortname_mixed, Opt_utf8_no, Opt_utf8_yes,
Opt_uni_xl_no, Opt_uni_xl_yes, Opt_nonumtail_no, Opt_nonumtail_yes,
- Opt_obsolate, Opt_flush, Opt_tz_utc, Opt_rodir, Opt_err,
+ Opt_obsolate, Opt_flush, Opt_tz_utc, Opt_rodir, Opt_err_cont,
+ Opt_err_panic, Opt_err_ro, Opt_err,
};
static const match_table_t fat_tokens = {
@@ -869,6 +876,11 @@ static const match_table_t fat_tokens = {
{Opt_showexec, "showexec"},
{Opt_debug, "debug"},
{Opt_immutable, "sys_immutable"},
+ {Opt_flush, "flush"},
+ {Opt_tz_utc, "tz=UTC"},
+ {Opt_err_cont, "errors=continue"},
+ {Opt_err_panic, "errors=panic"},
+ {Opt_err_ro, "errors=remount-ro"},
{Opt_obsolate, "conv=binary"},
{Opt_obsolate, "conv=text"},
{Opt_obsolate, "conv=auto"},
@@ -880,8 +892,6 @@ static const match_table_t fat_tokens = {
{Opt_obsolate, "cvf_format=%20s"},
{Opt_obsolate, "cvf_options=%100s"},
{Opt_obsolate, "posix"},
- {Opt_flush, "flush"},
- {Opt_tz_utc, "tz=UTC"},
{Opt_err, NULL},
};
static const match_table_t msdos_tokens = {
@@ -951,6 +961,7 @@ static int parse_options(char *options, int is_vfat, int silent, int *debug,
opts->numtail = 1;
opts->usefree = opts->nocase = 0;
opts->tz_utc = 0;
+ opts->errors = FAT_ERRORS_RO;
*debug = 0;
if (!options)
@@ -1043,6 +1054,15 @@ static int parse_options(char *options, int is_vfat, int silent, int *debug,
case Opt_tz_utc:
opts->tz_utc = 1;
break;
+ case Opt_err_cont:
+ opts->errors = FAT_ERRORS_CONT;
+ break;
+ case Opt_err_panic:
+ opts->errors = FAT_ERRORS_PANIC;
+ break;
+ case Opt_err_ro:
+ opts->errors = FAT_ERRORS_RO;
+ break;
/* msdos specific */
case Opt_dots: