linux-dev/drivers/staging/erofs/include, branch master

erofs: move erofs out of staging

2019-08-24T12:20:10Z

EROFS filesystem has been merged into linux-staging for a year. EROFS is designed to be a better solution of saving extra storage space with guaranteed end-to-end performance for read-only files with the help of reduced metadata, fixed-sized output compression and decompression inplace technologies. In the past year, EROFS was greatly improved by many people as a staging driver, self-tested, betaed by a large number of our internal users, successfully applied to almost all in-service HUAWEI smartphones as the part of EMUI 9.1 and proven to be stable enough to be moved out of staging. EROFS is a self-contained filesystem driver. Although there are still some TODOs to be more generic, we have a dedicated team actively keeping on working on EROFS in order to make it better with the evolution of Linux kernel as the other in-kernel filesystems. As Pavel suggested, it's better to do as one commit since git can do moves and all histories will be saved in this way. Let's promote it from staging and enhance it more actively as a "real" part of kernel for more wider scenarios! Cc: Greg Kroah-Hartman Cc: Alexander Viro Cc: Andrew Morton Cc: Stephen Rothwell Cc: Theodore Ts'o Cc: Pavel Machek Cc: David Sterba Cc: Amir Goldstein Cc: Christoph Hellwig Cc: Darrick J . Wong Cc: Dave Chinner Cc: Jaegeuk Kim Cc: Jan Kara Cc: Richard Weinberger Cc: Linus Torvalds Cc: Chao Yu Cc: Miao Xie Cc: Li Guifu Cc: Fang Wei Signed-off-by: Gao Xiang Link: https://lore.kernel.org/r/20190822213659.5501-1-hsiangkao@aol.com Signed-off-by: Greg Kroah-Hartman

staging: erofs: rename source files for better understanding

2019-08-02T11:52:03Z

Keep in line with erofs-outofstaging patchset as well, see https://lore.kernel.org/linux-fsdevel/20190725095658.155779-1-gaoxiang25@huawei.com/ Reviewed-by: Chao Yu Signed-off-by: Gao Xiang Link: https://lore.kernel.org/r/20190731155752.210602-3-gaoxiang25@huawei.com Signed-off-by: Greg Kroah-Hartman

staging: erofs: update source file headers

2019-08-02T11:52:03Z

- Use the correct style for all SPDX License Identifiers; - Get rid of the unnecessary license boilerplate; - Use "GPL-2.0-only" instead of "GPL-2.0" suggested-by Stephen. Reviewed-by: Chao Yu Signed-off-by: Gao Xiang Link: https://lore.kernel.org/r/20190731155752.210602-2-gaoxiang25@huawei.com Signed-off-by: Greg Kroah-Hartman

staging: erofs: add trace points for reading zipped data

2018-09-18T14:35:03Z

This patch adds trace points for reading zipped data. Signed-off-by: Chen Gong Reviewed-by: Chao Yu Reviewed-by: Gao Xiang Signed-off-by: Gao Xiang Signed-off-by: Greg Kroah-Hartman

staging: erofs: : introduce tagged pointer

2018-07-27T15:24:08Z

Currently kernel has scattered tagged pointer usages hacked by hand in plain code, without a unique and portable functionset to highlight the tagged pointer itself and wrap these hacked code in order to clean up all over meaningless magic masks. Therefore, this patch introduces simple generic methods to fold tags into a pointer integer. It currently supports the last n bits of the pointer for tags, which can be selected by users. In addition, it will also be used for the upcoming EROFS filesystem, which heavily uses tagged pointer approach for high performance and reducing extra memory allocation. Link: https://en.wikipedia.org/wiki/Tagged_pointer Signed-off-by: Gao Xiang Signed-off-by: Greg Kroah-Hartman

staging: erofs: support tracepoint

2018-07-27T15:24:08Z

Add basic tracepoints for ->readpage{,s}, ->lookup, ->destroy_inode, fill_inode and map_blocks. Reviewed-by: Gao Xiang Signed-off-by: Chao Yu Signed-off-by: Greg Kroah-Hartman