kernel/git/stable/linux.git/fs/ubifs/commit.c, branch linux-3.5.y

UBIFS: get rid of dbg_err

2012-05-16T17:11:23+00:00

This patch removes the 'dbg_err()' macro and we now use 'ubifs_err()' instead. The idea of 'dbg_err()' was to compile out some error message to make the binary a bit smaller - but I think it was a bad idea. Signed-off-by: Artem Bityutskiy

UBIFS: remove Kconfig debugging option

2012-05-16T16:53:46+00:00

Have the debugging stuff always compiled-in instead. It simplifies maintanance a lot. Signed-off-by: Artem Bityutskiy

UBIFS: rename dumping functions

2012-05-16T16:15:56+00:00

This commit re-names all functions which dump something from "dbg_dump_*()" to "ubifs_dump_*()". This is done for consistency with UBI and because this way it will be more logical once we remove the debugging sompilation option. Signed-off-by: Artem Bityutskiy

UBIFS: lessen amount of debugging check types

2011-07-04T07:54:28+00:00

We have too many different debugging checks - lessen the amount by merging all index-related checks into one. At the same time, move the "force in-the-gap" test to the "index checks" class, because it is too heavy for the "general" class. This patch merges TNC, Old index, and Index size check and calles this just "index checks". Signed-off-by: Artem Bityutskiy

UBIFS: introduce helper functions for debugging checks and tests

2011-07-04T07:54:28+00:00

This patch introduces helper functions for all debugging checks, so instead of doing if (!(ubifs_chk_flags & UBIFS_CHK_GEN)) we now do if (!dbg_is_chk_gen(c)) This is a preparation to further changes where the flags will go away, and we'll need to only change the helper functions, but the code which utilizes them won't be touched. At the same time this patch removes 'dbg_force_in_the_gaps()', 'dbg_force_in_the_gaps_enabled()', and dbg_failure_mode helpers for consistency. Signed-off-by: Artem Bityutskiy

UBIFS: harmonize znode flag helpers

2011-07-04T07:54:27+00:00

We have 3 znode flags: cow, obsolete, dirty. For the last flag we have a 'ubifs_zn_dirty()' helper function, but for the other 2 flags we use 'test_bit()' directly. This patch makes the situation more consistent and introduces helpers for the other 2 flags: 'ubifs_zn_cow()' and 'ubifs_zn_obsolete()'. Signed-off-by: Artem Bityutskiy

UBIFS: return EROFS in case of broken commit

2011-07-04T07:54:26+00:00

If commit failed and it is in broken state, UBIFS switches to R/O mode. Most operations return -EROFS in this case, except of commit which returns -EINVAL. Make it return -EROFS too for consistency. This is also important for our power cut emulation testing. Signed-off-by: Artem Bityutskiy

UBIFS: introduce a separate structure for budgeting info

2011-05-13T16:23:53+00:00

This patch separates out all the budgeting-related information from 'struct ubifs_info' to 'struct ubifs_budg_info'. This way the code looks a bit cleaner. However, the main driver for this is that we want to save budgeting information and print it later, so a separate data structure for this is helpful. This patch is a preparation for the further debugging output improvements. Signed-off-by: Artem Bityutskiy

UBIFS: do not read flash unnecessarily

2011-04-05T07:39:40+00:00

This fix makes the 'dbg_check_old_index()' function return immediately if debugging is disabled, instead of executing incorrect 'goto out' which causes UBIFS to: 1. Allocate memory 2. Read the flash On every commit. OK, we do not commit that often, but it is still silly to do unneeded I/O anyway. Credits to coverity for spotting this silly issue. Signed-off-by: Artem Bityutskiy Cc: stable@kernel.org

UBIFS: do not start the commit if there is nothing to commit

2011-01-25T08:21:13+00:00

This patch fixes suboptimal UBIFS 'sync_fs()' implementation which causes flash I/O even if the file-system is synchronized. E.g., a 'printk()' in the MTD erasure function (e.g., 'nand_erase_nand()') can show that for every 'sync' shell command UBIFS erases at least one eraseblock. So '$ while true; do sync; done' will cause huge amount of flash I/O. The reason for this is that UBIFS commits in 'sync_fs()', and starts the commit even if there is nothing to commit, e.g., it anyway changes the log. This patch adds a check in the 'do_commit()' UBIFS functions which prevents the commit if there is nothing to commit. Reported-by: Hans J. Koch Tested-by: John Ogness Signed-off-by: Artem Bityutskiy