diff options
author | Heiko Schocher <hs@denx.de> | 2015-10-22 06:19:21 +0200 |
---|---|---|
committer | Heiko Schocher <hs@denx.de> | 2015-10-26 09:22:36 +0100 |
commit | 0195a7bb36a0abc71145da419001377bf56662fd (patch) | |
tree | bca19320118d4cbeb770d94f6b1e9d3ad91dc151 /fs/ubifs/log.c | |
parent | 5219db8ae802210730b348a888474efc2f9bf0a4 (diff) | |
download | u-boot-imx-0195a7bb36a0abc71145da419001377bf56662fd.zip u-boot-imx-0195a7bb36a0abc71145da419001377bf56662fd.tar.gz u-boot-imx-0195a7bb36a0abc71145da419001377bf56662fd.tar.bz2 |
ubi,ubifs: sync with linux v4.2
sync with linux v4.2
commit 64291f7db5bd8150a74ad2036f1037e6a0428df2
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sun Aug 30 11:34:09 2015 -0700
Linux 4.2
This update is needed, as it turned out, that fastmap
was in experimental/broken state in kernel v3.15, which
was the last base for U-Boot.
Signed-off-by: Heiko Schocher <hs@denx.de>
Tested-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Diffstat (limited to 'fs/ubifs/log.c')
-rw-r--r-- | fs/ubifs/log.c | 35 |
1 files changed, 22 insertions, 13 deletions
diff --git a/fs/ubifs/log.c b/fs/ubifs/log.c index 0355fe2..a07fdef 100644 --- a/fs/ubifs/log.c +++ b/fs/ubifs/log.c @@ -98,10 +98,14 @@ static inline long long empty_log_bytes(const struct ubifs_info *c) h = (long long)c->lhead_lnum * c->leb_size + c->lhead_offs; t = (long long)c->ltail_lnum * c->leb_size; - if (h >= t) + if (h > t) return c->log_bytes - h + t; - else + else if (h != t) return t - h; + else if (c->lhead_lnum != c->ltail_lnum) + return 0; + else + return c->log_bytes; } /** @@ -232,6 +236,7 @@ int ubifs_add_bud_to_log(struct ubifs_info *c, int jhead, int lnum, int offs) if (c->lhead_offs > c->leb_size - c->ref_node_alsz) { c->lhead_lnum = ubifs_next_log_lnum(c, c->lhead_lnum); + ubifs_assert(c->lhead_lnum != c->ltail_lnum); c->lhead_offs = 0; } @@ -396,15 +401,14 @@ int ubifs_log_start_commit(struct ubifs_info *c, int *ltail_lnum) /* Switch to the next log LEB */ if (c->lhead_offs) { c->lhead_lnum = ubifs_next_log_lnum(c, c->lhead_lnum); + ubifs_assert(c->lhead_lnum != c->ltail_lnum); c->lhead_offs = 0; } - if (c->lhead_offs == 0) { - /* Must ensure next LEB has been unmapped */ - err = ubifs_leb_unmap(c, c->lhead_lnum); - if (err) - goto out; - } + /* Must ensure next LEB has been unmapped */ + err = ubifs_leb_unmap(c, c->lhead_lnum); + if (err) + goto out; len = ALIGN(len, c->min_io_size); dbg_log("writing commit start at LEB %d:0, len %d", c->lhead_lnum, len); @@ -439,9 +443,9 @@ out: * @ltail_lnum: new log tail LEB number * * This function is called on when the commit operation was finished. It - * moves log tail to new position and unmaps LEBs which contain obsolete data. - * Returns zero in case of success and a negative error code in case of - * failure. + * moves log tail to new position and updates the master node so that it stores + * the new log tail LEB number. Returns zero in case of success and a negative + * error code in case of failure. */ int ubifs_log_end_commit(struct ubifs_info *c, int ltail_lnum) { @@ -469,7 +473,12 @@ int ubifs_log_end_commit(struct ubifs_info *c, int ltail_lnum) spin_unlock(&c->buds_lock); err = dbg_check_bud_bytes(c); + if (err) + goto out; + + err = ubifs_write_master(c); +out: mutex_unlock(&c->log_mutex); return err; } @@ -679,7 +688,7 @@ int ubifs_consolidate_log(struct ubifs_info *c) destroy_done_tree(&done_tree); vfree(buf); if (write_lnum == c->lhead_lnum) { - ubifs_err("log is too full"); + ubifs_err(c, "log is too full"); return -EINVAL; } /* Unmap remaining LEBs */ @@ -726,7 +735,7 @@ static int dbg_check_bud_bytes(struct ubifs_info *c) bud_bytes += c->leb_size - bud->start; if (c->bud_bytes != bud_bytes) { - ubifs_err("bad bud_bytes %lld, calculated %lld", + ubifs_err(c, "bad bud_bytes %lld, calculated %lld", c->bud_bytes, bud_bytes); err = -EINVAL; } |