Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Adrien Schildknecht 60cc09a9e3 ANDROID: Squashfs: optimize reading uncompressed data ... When dealing with uncompressed data, there is no need to read a whole block (default 128K) to get the desired page: the pages are independent from each others. This patch change the readpages logic so that reading uncompressed data only read the number of pages advised by the readahead algorithm. Moreover, if the page actor contains holes (i.e. pages that are already up-to-date), squashfs skips the buffer_head associated to those pages. This patch greatly improve the performance of random reads for uncompressed files because squashfs only read what is needed. It also reduces the number of unnecessary reads. Change-Id: I90a77343bb994a1de7482eb43eaf6d2021502c22 Signed-off-by: Adrien Schildknecht <adriens@google.com>		2017-09-21 13:52:32 -07:00
..
block.c	ANDROID: Squashfs: optimize reading uncompressed data	2017-09-21 13:52:32 -07:00
cache.c	ANDROID: Squashfs: refactor page_actor	2017-09-21 13:52:31 -07:00
decompressor.c	ANDROID: Squashfs: refactor page_actor	2017-09-21 13:52:31 -07:00
decompressor.h	Squashfs: Add LZ4 compression configuration option	2014-11-27 18:48:44 +00:00
decompressor_multi.c	Squashfs: Check stream is not NULL in decompressor_multi.c	2013-11-20 03:59:20 +00:00
decompressor_multi_percpu.c	Squashfs: Generalise paging handling in the decompressors	2013-11-20 03:59:01 +00:00
decompressor_single.c	Squashfs: Generalise paging handling in the decompressors	2013-11-20 03:59:01 +00:00
dir.c	romfs, squashfs: switch to ->iterate_shared()	2016-05-09 11:41:15 -04:00
export.c	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
file.c	ANDROID: Squashfs: implement .readpages()	2017-09-21 13:52:31 -07:00
file_direct.c	ANDROID: Squashfs: optimize reading uncompressed data	2017-09-21 13:52:32 -07:00
fragment.c	Squashfs: Fix sanity check patches on big-endian systems	2011-05-29 10:03:09 +01:00
id.c	Squashfs: Fix sanity check patches on big-endian systems	2011-05-29 10:03:09 +01:00
inode.c	vfs: Remove {get,set,remove}xattr inode operations	2016-10-07 21:48:36 -04:00
Kconfig	ANDROID: Squashfs: remove the FILE_CACHE option	2017-09-21 13:52:31 -07:00
lz4_wrapper.c	ANDROID: Squashfs: refactor page_actor	2017-09-21 13:52:31 -07:00
lzo_wrapper.c	ANDROID: Squashfs: refactor page_actor	2017-09-21 13:52:31 -07:00
Makefile	ANDROID: Squashfs: remove the FILE_CACHE option	2017-09-21 13:52:31 -07:00
namei.c	vfs: Remove {get,set,remove}xattr inode operations	2016-10-07 21:48:36 -04:00
page_actor.c	ANDROID: Squashfs: refactor page_actor	2017-09-21 13:52:31 -07:00
page_actor.h	ANDROID: Squashfs: refactor page_actor	2017-09-21 13:52:31 -07:00
squashfs.h	ANDROID: Squashfs: implement .readpages()	2017-09-21 13:52:31 -07:00
squashfs_fs.h	Squashfs: add LZ4 compression support	2014-11-27 07:44:11 +00:00
squashfs_fs_i.h	fs: cleanup slight list_entry abuse	2015-06-23 18:01:59 -04:00
squashfs_fs_sb.h	ANDROID: Squashfs: refactor page_actor	2017-09-21 13:52:31 -07:00
super.c	ANDROID: Squashfs: replace buffer_head with BIO	2017-09-21 13:52:31 -07:00
symlink.c	vfs: Remove {get,set,remove}xattr inode operations	2016-10-07 21:48:36 -04:00
xattr.c	xattr_handler: pass dentry and inode as separate arguments of ->get()	2016-04-10 20:48:24 -04:00
xattr.h	vfs: Remove {get,set,remove}xattr inode operations	2016-10-07 21:48:36 -04:00
xattr_id.c	Squashfs: update email address	2011-05-26 10:49:11 +01:00
xz_wrapper.c	ANDROID: Squashfs: refactor page_actor	2017-09-21 13:52:31 -07:00
zlib_wrapper.c	ANDROID: Squashfs: refactor page_actor	2017-09-21 13:52:31 -07:00