mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-25 05:04:09 +08:00
93e72b3c61
ll_rw_block() function has been deprecated in favor of BIO which appears to come with large performance improvements. This patch decreases boot time by close to 40% when using squashfs for the root file-system. This is observed at least in the context of starting an Android VM on Chrome OS using crosvm. The patch was tested on 4.19 as well as master. This patch is largely based on Adrien Schildknecht's patch that was originally sent as https://lkml.org/lkml/2017/9/22/814 though with some significant changes and simplifications while also taking Phillip Lougher's feedback into account, around preserving support for FILE_CACHE in particular. [akpm@linux-foundation.org: fix build error reported by Randy] Link: http://lkml.kernel.org/r/319997c2-5fc8-f889-2ea3-d913308a7c1f@infradead.org Signed-off-by: Philippe Liard <pliard@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Cc: Adrien Schildknecht <adrien+dev@schischi.me> Cc: Phillip Lougher <phillip@squashfs.org.uk> Cc: Guenter Roeck <groeck@chromium.org> Cc: Daniel Rosenberg <drosen@google.com> Link: https://chromium.googlesource.com/chromiumos/platform/crosvm Link: http://lkml.kernel.org/r/20191106074238.186023-1-pliard@google.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|---|---|---|
| .. | ||
| block.c | ||
| cache.c | ||
| decompressor_multi_percpu.c | ||
| decompressor_multi.c | ||
| decompressor_single.c | ||
| decompressor.c | ||
| decompressor.h | ||
| dir.c | ||
| export.c | ||
| file_cache.c | ||
| file_direct.c | ||
| file.c | ||
| fragment.c | ||
| id.c | ||
| inode.c | ||
| Kconfig | ||
| lz4_wrapper.c | ||
| lzo_wrapper.c | ||
| Makefile | ||
| namei.c | ||
| page_actor.c | ||
| page_actor.h | ||
| squashfs_fs_i.h | ||
| squashfs_fs_sb.h | ||
| squashfs_fs.h | ||
| squashfs.h | ||
| super.c | ||
| symlink.c | ||
| xattr_id.c | ||
| xattr.c | ||
| xattr.h | ||
| xz_wrapper.c | ||
| zlib_wrapper.c | ||
| zstd_wrapper.c | ||