/*
* Note, Linux write-back code calls this without 'i_mutex'.
*/
-static int ubifs_write_inode(struct inode *inode, int wait)
+static int ubifs_write_inode(struct inode *inode, struct writeback_control *wbc)
{
int err = 0;
struct ubifs_info *c = inode->i_sb->s_fs_info;
if (err)
ubifs_err("can't write inode %lu, error %d",
inode->i_ino, err);
+ else
+ err = dbg_check_inode_size(c, inode, ui->ui_size);
}
ui->dirty = 0;
{
int i, err;
struct ubifs_info *c = sb->s_fs_info;
- struct writeback_control wbc = {
- .sync_mode = WB_SYNC_ALL,
- .range_start = 0,
- .range_end = LLONG_MAX,
- .nr_to_write = LONG_MAX,
- };
/*
* Zero @wait is just an advisory thing to help the file system shove
if (!wait)
return 0;
- if (sb->s_flags & MS_RDONLY)
- return 0;
-
- /*
- * VFS calls '->sync_fs()' before synchronizing all dirty inodes and
- * pages, so synchronize them first, then commit the journal. Strictly
- * speaking, it is not necessary to commit the journal here,
- * synchronizing write-buffers would be enough. But committing makes
- * UBIFS free space predictions much more accurate, so we want to let
- * the user be able to get more accurate results of 'statfs()' after
- * they synchronize the file system.
- */
- generic_sync_sb_inodes(sb, &wbc);
-
/*
* Synchronize write buffers, because 'ubifs_run_commit()' does not
* do this if it waits for an already running commit.
return err;
}
+ /*
+ * Strictly speaking, it is not necessary to commit the journal here,
+ * synchronizing write-buffers would be enough. But committing makes
+ * UBIFS free space predictions much more accurate, so we want to let
+ * the user be able to get more accurate results of 'statfs()' after
+ * they synchronize the file system.
+ */
err = ubifs_run_commit(c);
if (err)
return err;
* does not need to be synchronized by timer.
*/
c->jheads[GCHD].wbuf.dtype = UBI_LONGTERM;
- c->jheads[GCHD].wbuf.softlimit = ktime_set(0, 0);
+ c->jheads[GCHD].wbuf.no_timer = 1;
return 0;
}
switch (token) {
/*
* %Opt_fast_unmount and %Opt_norm_unmount options are ignored.
- * We accepte them in order to be backware-compatible. But this
+ * We accept them in order to be backward-compatible. But this
* should be removed at some point.
*/
case Opt_fast_unmount:
if (err)
goto out_journal;
+ /* Calculate 'min_idx_lebs' after journal replay */
+ c->min_idx_lebs = ubifs_calc_min_idx_lebs(c);
+
err = ubifs_mount_orphans(c, c->need_recovery, mounted_read_only);
if (err)
goto out_orphans;
c->leb_size, c->leb_size >> 10);
dbg_msg("data journal heads: %d",
c->jhead_cnt - NONDATA_JHEADS_CNT);
- dbg_msg("UUID: %02X%02X%02X%02X-%02X%02X"
- "-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
- c->uuid[0], c->uuid[1], c->uuid[2], c->uuid[3],
- c->uuid[4], c->uuid[5], c->uuid[6], c->uuid[7],
- c->uuid[8], c->uuid[9], c->uuid[10], c->uuid[11],
- c->uuid[12], c->uuid[13], c->uuid[14], c->uuid[15]);
+ dbg_msg("UUID: %pUB", c->uuid);
dbg_msg("big_lpt %d", c->big_lpt);
dbg_msg("log LEBs: %d (%d - %d)",
c->log_lebs, UBIFS_LOG_LNUM, c->log_last);
ubifs_msg("un-mount UBI device %d, volume %d", c->vi.ubi_num,
c->vi.vol_id);
+
/*
* The following asserts are only valid if there has not been a failure
* of the media. For example, there will be dirty inodes if we failed
/* Synchronize write-buffers */
if (c->jheads)
- for (i = 0; i < c->jhead_cnt; i++) {
+ for (i = 0; i < c->jhead_cnt; i++)
ubifs_wbuf_sync(&c->jheads[i].wbuf);
- hrtimer_cancel(&c->jheads[i].wbuf.timer);
- }
/*
* On fatal errors c->ro_media is set to 1, in which case we do
* @name: UBI volume name
* @mode: UBI volume open mode
*
- * There are several ways to specify UBI volumes when mounting UBIFS:
- * o ubiX_Y - UBI device number X, volume Y;
- * o ubiY - UBI device number 0, volume Y;
+ * The primary method of mounting UBIFS is by specifying the UBI volume
+ * character device node path. However, UBIFS may also be mounted withoug any
+ * character device node using one of the following methods:
+ *
+ * o ubiX_Y - mount UBI device number X, volume Y;
+ * o ubiY - mount UBI device number 0, volume Y;
* o ubiX:NAME - mount UBI device X, volume with name NAME;
* o ubi:NAME - mount UBI device 0, volume with name NAME.
*
* Alternative '!' separator may be used instead of ':' (because some shells
* like busybox may interpret ':' as an NFS host name separator). This function
- * returns ubi volume object in case of success and a negative error code in
- * case of failure.
+ * returns UBI volume description object in case of success and a negative
+ * error code in case of failure.
*/
static struct ubi_volume_desc *open_ubi(const char *name, int mode)
{
+ struct ubi_volume_desc *ubi;
int dev, vol;
char *endptr;
+ /* First, try to open using the device node path method */
+ ubi = ubi_open_volume_path(name, mode);
+ if (!IS_ERR(ubi))
+ return ubi;
+
+ /* Try the "nodev" method */
if (name[0] != 'u' || name[1] != 'b' || name[2] != 'i')
return ERR_PTR(-EINVAL);
*
* Read-ahead will be disabled because @c->bdi.ra_pages is 0.
*/
+ c->bdi.name = "ubifs",
c->bdi.capabilities = BDI_CAP_MAP_COPY;
c->bdi.unplug_io_fn = default_unplug_io_fn;
err = bdi_init(&c->bdi);
if (err)
goto out_close;
- err = bdi_register(&c->bdi, NULL, "ubifs");
+ err = bdi_register(&c->bdi, NULL, "ubifs_%d_%d",
+ c->vi.ubi_num, c->vi.vol_id);
if (err)
goto out_bdi;
if (err)
goto out_bdi;
+ sb->s_bdi = &c->bdi;
sb->s_fs_info = c;
sb->s_magic = UBIFS_SUPER_MAGIC;
sb->s_blocksize = UBIFS_BLOCK_SIZE;
return 0;
out_deact:
- up_write(&sb->s_umount);
- deactivate_super(sb);
+ deactivate_locked_super(sb);
out_close:
ubi_close_volume(ubi);
return err;
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff