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ext3: remove vestiges of nobh support

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The nobh option was only supported for writeback mode, but given that all
write paths (except mmapped writed) actually create buffer heads, it
effectively was a no-op already.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Christoph Hellwig
2010-06-07 10:20:39 +02:00
committed by Jan Kara
parent 0411ba7902
commit 4c4d390122
3 changed files with 5 additions and 29 deletions
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17
fs/ext3/super.c
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@ -661,9 +661,6 @@ static int ext3_show_options(struct seq_file *seq, struct vfsmount *vfs)
*/
seq_puts(seq, ",barrier=");
seq_puts(seq, test_opt(sb, BARRIER) ? "1" : "0");
if (test_opt(sb, NOBH))
seq_puts(seq, ",nobh");
seq_printf(seq, ",data=%s", data_mode_string(test_opt(sb, DATA_FLAGS)));
if (test_opt(sb, DATA_ERR_ABORT))
seq_puts(seq, ",data_err=abort");
@ -1255,10 +1252,12 @@ set_qf_format:
*n_blocks_count = option;
break;
case Opt_nobh:
set_opt(sbi->s_mount_opt, NOBH);
ext3_msg(sb, KERN_WARNING,
"warning: ignoring deprecated nobh option");
break;
case Opt_bh:
clear_opt(sbi->s_mount_opt, NOBH);
ext3_msg(sb, KERN_WARNING,
"warning: ignoring deprecated bh option");
break;
default:
ext3_msg(sb, KERN_ERR,
@ -2001,14 +2000,6 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
break;
}
if (test_opt(sb, NOBH)) {
if (!(test_opt(sb, DATA_FLAGS) == EXT3_MOUNT_WRITEBACK_DATA)) {
ext3_msg(sb, KERN_WARNING,
"warning: ignoring nobh option - "
"it is supported only with writeback mode");
clear_opt(sbi->s_mount_opt, NOBH);
}
}
/*
* The journal_load will have done any necessary log recovery,
* so we can safely mount the rest of the filesystem now.