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authorLukas Czerner <lczerner@redhat.com>2011-05-20 13:55:16 -0400
committerTheodore Ts'o <tytso@mit.edu>2011-05-20 13:55:16 -0400
commit51ce65115642b77040f5582b8d2fc8815ac450f9 (patch)
tree53e42bb73ccbca4251d46ec5705a40a6b61bc5ab /fs/ext4/super.c
parente1290b3e62c496ade19939ce036f35bb69306820 (diff)
ext4: fix the mount option "init_itable=n" to work as expected for n=0
For some reason, when we set the mount option "init_itable=0" it behaves as we would set init_itable=20 which is not right at all. Basically when we set it to zero we are saying to lazyinit thread not to wait between zeroing the inode table (except of cond_resched()) so this commit fixes that and removes the unnecessary condition. The 'n' should be also properly used on remount. When the n is not set at all, it means that the default miltiplier EXT4_DEF_LI_WAIT_MULT is set instead. Signed-off-by: Lukas Czerner <lczerner@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Reported-by: Eric Sandeen <sandeen@redhat.com>
Diffstat (limited to 'fs/ext4/super.c')
-rw-r--r--fs/ext4/super.c23
1 files changed, 16 insertions, 7 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index d7756bd2dc12..fd51a4a266b6 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1112,7 +1112,7 @@ static int ext4_show_options(struct seq_file *seq, struct vfsmount *vfs)
if (!test_opt(sb, INIT_INODE_TABLE))
seq_puts(seq, ",noinit_inode_table");
- else if (sbi->s_li_wait_mult)
+ else if (sbi->s_li_wait_mult != EXT4_DEF_LI_WAIT_MULT)
seq_printf(seq, ",init_inode_table=%u",
(unsigned) sbi->s_li_wait_mult);
@@ -2704,11 +2704,8 @@ static int ext4_run_li_request(struct ext4_li_request *elr)
ret = ext4_init_inode_table(sb, group,
elr->lr_timeout ? 0 : 1);
if (elr->lr_timeout == 0) {
- timeout = jiffies - timeout;
- if (elr->lr_sbi->s_li_wait_mult)
- timeout *= elr->lr_sbi->s_li_wait_mult;
- else
- timeout *= 20;
+ timeout = (jiffies - timeout) *
+ elr->lr_sbi->s_li_wait_mult;
elr->lr_timeout = timeout;
}
elr->lr_next_sched = jiffies + elr->lr_timeout;
@@ -2945,8 +2942,14 @@ static int ext4_register_li_request(struct super_block *sb,
ext4_group_t ngroups = EXT4_SB(sb)->s_groups_count;
int ret = 0;
- if (sbi->s_li_request != NULL)
+ if (sbi->s_li_request != NULL) {
+ /*
+ * Reset timeout so it can be computed again, because
+ * s_li_wait_mult might have changed.
+ */
+ sbi->s_li_request->lr_timeout = 0;
return 0;
+ }
if (first_not_zeroed == ngroups ||
(sb->s_flags & MS_RDONLY) ||
@@ -3144,6 +3147,12 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
((def_mount_opts & EXT4_DEFM_NODELALLOC) == 0))
set_opt(sb, DELALLOC);
+ /*
+ * set default s_li_wait_mult for lazyinit, for the case there is
+ * no mount option specified.
+ */
+ sbi->s_li_wait_mult = EXT4_DEF_LI_WAIT_MULT;
+
if (!parse_options((char *) sbi->s_es->s_mount_opts, sb,
&journal_devnum, &journal_ioprio, NULL, 0)) {
ext4_msg(sb, KERN_WARNING,