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UBIFS: allow for sync_fs when read-only

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sync_fs can be called even if the file system is mounted
read-only.  Ensure the commit is not run in that case.

Reported-by: Zoltan Sogor <weth@inf.u-szeged.hu>
Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
This commit is contained in:
Adrian Hunter 2008-09-11 14:25:44 +03:00 committed by Artem Bityutskiy
parent 403e12ab30
commit bed79935de
1 changed files with 10 additions and 9 deletions
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19
fs/ubifs/super.c
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@ -420,21 +420,22 @@ static int ubifs_sync_fs(struct super_block *sb, int wait)
int i, ret = 0, err;
long long bud_bytes;
if (c->jheads)
if (c->jheads) {
for (i = 0; i < c->jhead_cnt; i++) {
err = ubifs_wbuf_sync(&c->jheads[i].wbuf);
if (err && !ret)
ret = err;
}
/* Commit the journal unless it has too few data */
spin_lock(&c->buds_lock);
bud_bytes = c->bud_bytes;
spin_unlock(&c->buds_lock);
if (bud_bytes > c->leb_size) {
err = ubifs_run_commit(c);
if (err)
return err;
/* Commit the journal unless it has too little data */
spin_lock(&c->buds_lock);
bud_bytes = c->bud_bytes;
spin_unlock(&c->buds_lock);
if (bud_bytes > c->leb_size) {
err = ubifs_run_commit(c);
if (err)
return err;
}
}
/*