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Artem Bityutskiy 52c6e6f990 UBIFS: seek journal heads to the latest bud in replay ... This is the second fix of the following symptom: UBIFS error (pid 34456): could not find an empty LEB which sometimes happens after power cuts when we mount the file-system - UBIFS refuses it with the above error message which comes from the 'ubifs_rcvry_gc_commit()' function. I can reproduce this using the integck test with the UBIFS power cut emulation enabled. Analysis of the problem. Currently UBIFS replay seeks the journal heads to the last _replayed_ bud. But the buds are replayed out-of-order, so the replay basically seeks journal heads to the "random" bud belonging to this head, and not to the _last_ one. The result of this is that the GC head may be seeked to a full LEB with no free space, or very little free space. And 'ubifs_rcvry_gc_commit()' tries to find a fully or mostly dirty LEB to match the current GC head (because we need to garbage-collect that dirty LEB at one go, because we do not have @c->gc_lnum). So 'ubifs_find_dirty_leb()' fails and we fall back to finding an empty LEB and also fail. As a result - recovery fails and mounting fails. This patch teaches the replay to initialize the GC heads exactly to the latest buds, i.e. the buds which have the largest sequence number in corresponding log reference nodes. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Cc: stable@kernel.org		14 years ago
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Kconfig	UBIFS: do not select KALLSYMS_ALL	14 years ago
Makefile	…
budget.c	Fix common misspellings	14 years ago
commit.c	UBIFS: do not read flash unnecessarily	14 years ago
compress.c	UBIFS: fix sparse warnings	16 years ago
debug.c	UBIFS: fix debugging failure in dbg_check_space_info	14 years ago
debug.h	UBIFS: fix compilation warnings when compiling with gcc 4.5	14 years ago
dir.c	fs: Remove i_nlink check from file system link callback	14 years ago
file.c	UBIFS: fix oops when R/O file-system is fsync'ed	14 years ago
find.c	UBIFS: improve find function interface	16 years ago
gc.c	UBIFS: introduce new flags for RO mounts	15 years ago
io.c	UBIFS: use max_write_size for write-buffers	14 years ago
ioctl.c	userns: rename is_owner_or_cap to inode_owner_or_capable	14 years ago
journal.c	UBIFS: handle allocation failures in UBIFS write path	14 years ago
key.h	UBIFS: mark unused key objects as invalid	15 years ago
log.c	UBIFS: do not free write-buffers when in R/O mode	14 years ago
lprops.c	UBIFS: use GFP_NOFS properly	14 years ago
lpt.c	UBIFS: fix oops on error path in read_pnode	14 years ago
lpt_commit.c	UBIFS: use GFP_NOFS properly	14 years ago
master.c	UBIFS: introduce new flags for RO mounts	15 years ago
misc.h	UBIFS: introduce new flags for RO mounts	15 years ago
orphan.c	UBIFS: use GFP_NOFS properly	14 years ago
recovery.c	UBIFS: fix master node recovery	14 years ago
replay.c	UBIFS: seek journal heads to the latest bud in replay	14 years ago
sb.c	UBIFS: introduce new flags for RO mounts	15 years ago
scan.c	UBIFS: remove double semicolon	14 years ago
shrinker.c	UBIFS: introduce new flags for RO mounts	15 years ago
super.c	UBIFS: do not free write-buffers when in R/O mode	14 years ago
tnc.c	UBIFS: introduce mounting flag	14 years ago
tnc_commit.c	UBIFS: do not print scary error messages needlessly	16 years ago
tnc_misc.c	UBIFS: correct key comparison	17 years ago
ubifs-media.h	UBIFS: define journal head numbers in ubifs-media.h	16 years ago
ubifs.h	UBIFS: handle allocation failures in UBIFS write path	14 years ago
xattr.c	fs: export empty_aops	14 years ago