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path: root/drivers/md/bcache
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2013-05-15bcache: Fix error handling in init codeKent Overstreet
This code appears to have rotted... fix various bugs and do some refactoring. Signed-off-by: Kent Overstreet <koverstreet@google.com>
2013-05-15bcache: drop "select CLOSURES"Paul Bolle
The Kconfig entry for BCACHE selects CLOSURES. But there's no Kconfig symbol CLOSURES. That symbol was used in development versions of bcache, but was removed when the closures code was no longer provided as a kernel library. It can safely be dropped. Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
2013-05-15bcache: Fix incompatible pointer type warningEmil Goode
The function pointer release in struct block_device_operations should point to functions declared as void. Sparse warnings: drivers/md/bcache/super.c:656:27: warning: incorrect type in initializer (different base types) drivers/md/bcache/super.c:656:27: expected void ( *release )( ... ) drivers/md/bcache/super.c:656:27: got int ( static [toplevel] *<noident> )( ... ) drivers/md/bcache/super.c:656:2: warning: initialization from incompatible pointer type [enabled by default] drivers/md/bcache/super.c:656:2: warning: (near initialization for ‘bcache_ops.release’) [enabled by default] Signed-off-by: Emil Goode <emilgoode@gmail.com> Signed-off-by: Kent Overstreet <koverstreet@google.com>
2013-04-30bcache: Use bd_link_disk_holder()Kent Overstreet
Signed-off-by: Kent Overstreet <koverstreet@google.com>
2013-04-30bcache: Allocator cleanup/fixesKent Overstreet
The main fix is that bch_allocator_thread() wasn't waiting on garbage collection to finish (if invalidate_buckets had set ca->invalidate_needs_gc); we need that to make sure the allocator doesn't spin and potentially block gc from finishing. Signed-off-by: Kent Overstreet <koverstreet@google.com>
2013-04-24bcache: Make sure blocksize isn't smaller than device blocksizeKent Overstreet
Sanity check to make sure we don't end up doing IO the device doesn't support. Signed-off-by: Kent Overstreet <koverstreet@google.com>
2013-04-22bcache: Fix merge_bvec_fn usage for when it modifies the bvmKent Overstreet
Stacked md devices reuse the bvm for the subordinate device, causing problems... Reported-by: Michael Balser <michael.balser@profitbricks.com> Signed-off-by: Kent Overstreet <koverstreet@google.com>
2013-04-20bcache: Correctly check against BIO_MAX_PAGESKent Overstreet
bch_bio_max_sectors() was checking against BIO_MAX_PAGES as if the limit was for the total bytes in the bio, not the number of segments. Signed-off-by: Kent Overstreet <koverstreet@google.com>
2013-04-20bcache: Hack around stuff that clones up to bi_max_vecsKent Overstreet
Signed-off-by: Kent Overstreet <koverstreet@google.com>
2013-04-20bcache: Set ra_pages based on backing device's ra_pagesKent Overstreet
Signed-off-by: Kent Overstreet <koverstreet@google.com>
2013-04-20bcache: Take data offset from the bdev superblock.Kent Overstreet
Add a new superblock version, and consolidate related defines. Signed-off-by: Gabriel de Perthuis <g2p.code+bcache@gmail.com> Signed-off-by: Kent Overstreet <koverstreet@google.com>
2013-04-08bcache: Disable broken btree fuzz testerKent Overstreet
Reported-by: <sasha.levin@oracle.com> Signed-off-by: Kent Overstreet <koverstreet@google.com>
2013-04-08bcache: Fix a format string overflowKent Overstreet
Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Kent Overstreet <koverstreet@google.com>
2013-04-08bcache: Fix a minor memory leak on device teardownKent Overstreet
Reported-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Kent Overstreet <koverstreet@google.com>
2013-04-08bcache: Use WARN_ONCE() instead of __WARN()Kent Overstreet
Signed-off-by: Kent Overstreet <koverstreet@google.com>
2013-04-08bcache: Add missing #include <linux/prefetch.h>Geert Uytterhoeven
m68k/allmodconfig: drivers/md/bcache/bset.c: In function ‘bset_search_tree’: drivers/md/bcache/bset.c:727: error: implicit declaration of function ‘prefetch’ drivers/md/bcache/btree.c: In function ‘bch_btree_node_get’: drivers/md/bcache/btree.c:933: error: implicit declaration of function ‘prefetch’ Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Kent Overstreet <koverstreet@google.com>
2013-04-08bcache: Sparse fixesKent Overstreet
Signed-off-by: Kent Overstreet <koverstreet@google.com>
2013-03-28bcache: Don't export utility code, prefix with bch_Kent Overstreet
Signed-off-by: Kent Overstreet <koverstreet@google.com> Cc: linux-bcache@vger.kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2013-03-25bcache: Fix for the build fixesKent Overstreet
Commit 82a84eaf7e51ba3da0c36cbc401034a4e943492d left a return 0 in closure_debug_init(). Whoops. Signed-off-by: Kent Overstreet <koverstreet@google.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2013-03-25bcache: Style/checkpatch fixesKent Overstreet
Took out some nested functions, and fixed some more checkpatch complaints. Signed-off-by: Kent Overstreet <koverstreet@google.com> Cc: linux-bcache@vger.kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2013-03-25bcache: Build fixes from test robotKent Overstreet
config: make ARCH=i386 allmodconfig All error/warnings: drivers/md/bcache/bset.c: In function 'bch_ptr_bad': >> drivers/md/bcache/bset.c:164:2: warning: format '%li' expects argument of type 'long int', but argument 4 has type 'size_t' [-Wformat] -- drivers/md/bcache/debug.c: In function 'bch_pbtree': >> drivers/md/bcache/debug.c:86:4: warning: format '%li' expects argument of type 'long int', but argument 4 has type 'size_t' [-Wformat] -- drivers/md/bcache/btree.c: In function 'bch_btree_read_done': >> drivers/md/bcache/btree.c:245:8: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'size_t' [-Wformat] -- drivers/md/bcache/closure.o: In function `closure_debug_init': >> (.init.text+0x0): multiple definition of `init_module' >> drivers/md/bcache/super.o:super.c:(.init.text+0x0): first defined here Signed-off-by: Kent Overstreet <koverstreet@google.com> Cc: Fengguang Wu <fengguang.wu@intel.com> Cc: linux-bcache@vger.kernel.org Signed-off-by: Jens Axboe <axboe@kernel.dk>
2013-03-23bcache: A block layer cacheKent Overstreet
Does writethrough and writeback caching, handles unclean shutdown, and has a bunch of other nifty features motivated by real world usage. See the wiki at http://bcache.evilpiepirate.org for more. Signed-off-by: Kent Overstreet <koverstreet@google.com>
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