kernel/linux.git/include/linux/mtd/blktrans.h, branch v6.19.11

mtd: block: use a simple bool to track open for write

2023-06-12T14:04:04+00:00

Instead of propagating the fmode_t, just use a bool to track if a mtd block device was opened for writing. Signed-off-by: Christoph Hellwig Reviewed-by: Hannes Reinecke Acked-by: Christian Brauner Acked-by: Richard Weinberger Link: https://lore.kernel.org/r/20230608110258.189493-23-hch@lst.de Signed-off-by: Jens Axboe

mtd: Add helper macro for register_mtd_blktrans boilerplate

2021-03-11T08:37:48+00:00

This patch introduces the module_mtd_blktrans macro which is a convenience macro for mtd blktrans modules similar to module_platform_driver. It is intended to be used by drivers which init/exit section does nothing but register/unregister the mtd blktrans driver. By using this macro it is possible to eliminate a few lines of boilerplate code per mtd blktrans driver. Signed-off-by: Dejin Zheng Signed-off-by: Miquel Raynal Link: https://lore.kernel.org/linux-mtd/20210213164600.409061-2-zhengdejin5@gmail.com

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 102

2019-05-24T15:39:00+00:00

Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin st fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 50 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Kate Stewart Reviewed-by: Allison Randal Reviewed-by: Richard Fontana Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190523091649.499889647@linutronix.de Signed-off-by: Greg Kroah-Hartman

mtd_blkdevs: convert to blk-mq

2018-10-16T14:09:58+00:00

Straight forward conversion, using an internal list to enable the driver to pull requests at will. Dynamically allocate the tag set to avoid having to pull in the block headers for blktrans.h, since various mtd drivers use block conflicting names for defines and functions. Cc: David Woodhouse Cc: linux-mtd@lists.infradead.org Tested-by: Richard Weinberger Signed-off-by: Jens Axboe

mtd_blktrans_ops->release() should return void

2013-05-06T01:31:22+00:00

Both existing instances always return 0 and even if they didn't, the value would be lost on the way out. Just don't bother... Signed-off-by: Al Viro

mtd: mtd_blkdevs: Replace request handler kthread with a workqueue

2012-11-21T15:02:23+00:00

By replacing a kthread with a workqueue, the code is now a bit clearer. There's also a slight reduction of code size (numbers apply for x86): Before: text data bss dec hex filename 3248 36 0 3284 cd4 drivers/mtd/mtd_blkdevs.o After: text data bss dec hex filename 3150 36 0 3186 c72 drivers/mtd/mtd_blkdevs.o Due to lack of real hardware, tests have been performed on an emulated environment with mtdswap and mtdblock over nandsim devices. Some real testing should be done, before merging this patch. Signed-off-by: Ezequiel Garcia Signed-off-by: Artem Bityutskiy

mtd: mtdblock: call mtd_sync() only if opened for write

2012-03-26T23:11:11+00:00

Because it is useless to call it if the device is opened in R/O mode, and also harmful: on CFI NOR flash it may block for long time waiting for erase operations to complete is another partition with a R/W file-system on this chip. Artem Bityutskiy: write commit message, amend the patch to match the latest tree (we use mtd_sync(), not mtd->sync() nowadays). Signed-off-by: Alexander Stein Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse

Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-linus-1

2011-03-25T15:41:20+00:00

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6: (9356 commits) [media] rc: update for bitop name changes fs: simplify iget & friends fs: pull inode->i_lock up out of writeback_single_inode fs: rename inode_lock to inode_hash_lock fs: move i_wb_list out from under inode_lock fs: move i_sb_list out from under inode_lock fs: remove inode_lock from iput_final and prune_icache fs: Lock the inode LRU list separately fs: factor inode disposal fs: protect inode->i_state with inode->i_lock lib, arch: add filter argument to show_mem and fix private implementations SLUB: Write to per cpu data when allocating it slub: Fix debugobjects with lockless fastpath autofs4: Do not potentially dereference NULL pointer returned by fget() in autofs_dev_ioctl_setpipefd() autofs4 - remove autofs4_lock autofs4 - fix d_manage() return on rcu-walk autofs4 - fix autofs4_expire_indirect() traversal autofs4 - fix dentry leak in autofs4_expire_direct() autofs4 - reinstate last used update on access vfs - check non-mountpoint dentry might block in __follow_mount_rcu() ... NOTE! This merge commit was created to fix compilation error. The block tree was merged upstream and removed the 'elv_queue_empty()' function which the new 'mtdswap' driver is using. So a simple merge of the mtd tree with upstream does not compile. And the mtd tree has already be published, so re-basing it is not an option. To fix this unfortunate situation, I had to merge upstream into the mtd-2.6.git tree without committing, put the fixup patch on top of this, and then commit this. The result is that we do not have commits which do not compile. In other words, this merge commit "merges" 3 things: the MTD tree, the upstream tree, and the fixup patch.

mtd_blkdevs: Add background processing support

2011-03-11T14:22:46+00:00

Add a new background method into mtd_blktrans_ops, add background support into mtd_blktrans_thread(), and add mtd_blktrans_cease_background(). If the mtd blktrans dev has the background support, the thread will call background function when the request queue becomes empty. The background operation may run as long as needs to until mtd_blktrans_cease_background() tells to stop. Signed-off-by: Jarkko Lavinen Tested-by: Artem Bityutskiy Signed-off-by: David Woodhouse

mtd: Update copyright notices

2010-08-08T19:58:20+00:00

Signed-off-by: David Woodhouse