Hi, We've got 27 patches for this merge window. These generally fall into four categories: (1) code cleanups, (2) patches related to adding PUNCH_HOLE support to GFS2, (3) support for new fields in resource group headers, and (4) support for new fields in journal log headers. These new fields, which were previously unused, are designed to make it easier to track down file system corruption, and allow fsck.gfs2 to make more intelligent decisions when finding and fixing file system corruption.
1. Abhi Das contributed a patch to trim the ordered writes list, which used to grow uncontrollably until unmount. 2. Andreas Gruenbacher removed an unused parameter from function gfs2_write_jdata_pagevec. 3. Andreas also removed a pointless BUG_ON. 4. Andreas cleaned up an error patch in trunc_start. 5. Andreas removed some unused parameters from truncate. 6. Andreas made gfs2_journaled_truncate more efficient. 7. Andreas cleaned up the support functions for truncate. 8. Andreas fixed metadata read-ahead for truncate to make it faster. 9. Andreas fixed up the non-recursive truncate code. 10. Andreas reworked and renamed function gfs2_block_truncate_page. 11. Andreas generalized the non-recursive truncate code so it can take a range of values for punch_hole support. 12. Andreas introduced new PUNCH_HOLE support that take advantage of the previous patches. 13. Andreas contributed a patch to add fallocate with PUNCH_HOLE. 14. Andreas fixed some typos in the comments. 15. Andreas added function gfs2_max_stuffed_size to replace a piece of code that was needlessly repeated throughout GFS2. 16. Andreas made a minor cleanup to function gfs2_page_add_databufs. 17. Andreas got rid of function gfs2_log_header_in in preparation for the new log header fields. 18. Andy Price added a new field to resource groups to indicate where the next one should be, to allow fsck.gfs2 to make better repairs. 19. Andy also added new rindex fields for consistency checking. 20. Andy added a crc field to resource group headers for consistency checking. 21. I added a patch to reduce redundancy in functions common to freeing dinodes. 22. I added a patch to reduce redundancy when writing log headers between the journalling code and journal recovery code. 23. I added a patch to add new fields to journal log headers based on a prototype from Steve Whitehouse. 24. I added a patch to log the source of journal log headers so we can better track down journal corruption. 25. I added a patch to fix a minor comment typo. 26. Steve Whitehouse contributed a patch to fix an incorrect use of the gfs2_blk2rgrpd function. 27. Tetsuo Handa contributed a patch that fixes incorrect error handling in function init_gfs2_fs. Regards, Bob Peterson --- Abhi Das (1): gfs2: Trim the ordered write list in gfs2_ordered_write() Andreas Gruenbacher (16): gfs2: Remove unused gfs2_write_jdata_pagevec parameter gfs2: Remove pointless BUG_ON gfs2: Clean up trunc_start error path gfs2: truncate: Remove unnecessary oldsize parameters gfs2: Remove minor gfs2_journaled_truncate inefficiencies gfs2: Clean up {lookup,fillup}_metapath gfs2: Fix metadata read-ahead during truncate gfs2: Improve non-recursive delete algorithm Turn gfs2_block_truncate_page into gfs2_block_zero_range gfs2: Generalize truncate code gfs2: Turn trunc_dealloc into punch_hole gfs2: Implement fallocate(FALLOC_FL_PUNCH_HOLE) gfs2: Typo fixes gfs2: Add gfs2_max_stuffed_size gfs2: Minor gfs2_page_add_databufs cleanup gfs2: Get rid of gfs2_log_header_in Andrew Price (3): gfs2: Add a next-resource-group pointer to resource groups gfs2: Add rindex fields to rgrp headers gfs2: Add a crc field to resource group headers Bob Peterson (5): GFS2: Combine gfs2_free_di with gfs2_free_uninit_di GFS2: Reduce code redundancy writing log headers GFS2: Introduce new gfs2_log_header_v2 GFS2: Log the reason for log flushes in every log header GFS2: Fix minor comment typo Steven Whitehouse (1): gfs2: Add gfs2_blk2rgrpd comment and fix incorrect use Tetsuo Handa (1): gfs2: Fix wrong error handling in init_gfs2_fs() -- 2.14.3