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author | 2015-11-23 22:46:28 +1100 | |
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committer | 2015-11-23 22:46:28 +1100 | |
commit | ebd68df3f24b318d391d15c458d6f43f340ba36a (patch) | |
tree | f0277bc4b853abe5db1d30fa4e10b05bba7f2ac5 /drivers/mtd/ubi/fastmap-wl.c | |
parent | security/capability.h: cap_issubset/isclear can be boolean (diff) | |
parent | Linux 4.4-rc2 (diff) | |
download | linux-dev-ebd68df3f24b318d391d15c458d6f43f340ba36a.tar.xz linux-dev-ebd68df3f24b318d391d15c458d6f43f340ba36a.zip |
Sync to Linus v4.4-rc2 for LSM developers.
Diffstat (limited to 'drivers/mtd/ubi/fastmap-wl.c')
-rw-r--r-- | drivers/mtd/ubi/fastmap-wl.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/mtd/ubi/fastmap-wl.c b/drivers/mtd/ubi/fastmap-wl.c index b2a665398bca..30d3999dddba 100644 --- a/drivers/mtd/ubi/fastmap-wl.c +++ b/drivers/mtd/ubi/fastmap-wl.c @@ -172,6 +172,30 @@ void ubi_refill_pools(struct ubi_device *ubi) } /** + * produce_free_peb - produce a free physical eraseblock. + * @ubi: UBI device description object + * + * This function tries to make a free PEB by means of synchronous execution of + * pending works. This may be needed if, for example the background thread is + * disabled. Returns zero in case of success and a negative error code in case + * of failure. + */ +static int produce_free_peb(struct ubi_device *ubi) +{ + int err; + + while (!ubi->free.rb_node && ubi->works_count) { + dbg_wl("do one work synchronously"); + err = do_work(ubi); + + if (err) + return err; + } + + return 0; +} + +/** * ubi_wl_get_peb - get a physical eraseblock. * @ubi: UBI device description object * @@ -213,6 +237,11 @@ again: } retried = 1; up_read(&ubi->fm_eba_sem); + ret = produce_free_peb(ubi); + if (ret < 0) { + down_read(&ubi->fm_eba_sem); + goto out; + } goto again; } |