kernel/linux.git/fs/nilfs2/segment.h, branch v6.18.22

nilfs2: remove wbc->for_reclaim handling

2025-05-21T17:48:23+00:00

Since commit 013a07052a1a ("nilfs2: convert metadata aops from writepage to writepages"), nilfs_mdt_write_folio can't be called from reclaim context any more. Remove the code keyed of the wbc->for_reclaim flag, which is now only set for writing out swap or shmem pages inside the swap code, but never passed to file systems. Link: https://lkml.kernel.org/r/20250508054938.15894-7-hch@lst.de Link: https://lkml.kernel.org/r/20250516123417.6779-1-konishi.ryusuke@gmail.com Signed-off-by: Christoph Hellwig Signed-off-by: Ryusuke Konishi Signed-off-by: Andrew Morton

nilfs2: use kthread_create and kthread_stop for the log writer thread

2024-09-02T03:43:44+00:00

By using kthread_create() and kthread_stop() to start and stop the log writer thread, eliminate custom thread start and stop helpers, as well as the wait queue "sc_wait_task" on the "nilfs_sc_info" struct and NILFS_SEGCTOR_QUIT flag that exist only to implement them. Also, update the kernel doc comments of the changed functions as appropriate. Link: https://lkml.kernel.org/r/20240826174116.5008-8-konishi.ryusuke@gmail.com Signed-off-by: Ryusuke Konishi Cc: Huang Xiaojia Signed-off-by: Andrew Morton

nilfs2: remove sc_timer_task

2024-09-02T03:43:43+00:00

After commit f5d4e04634c9 ("nilfs2: fix use-after-free of timer for log writer thread") is applied, nilfs_construct_timeout(), which is called by a timer and wakes up the log writer thread, is never called after the log writer thread has terminated. As a result, the member variable "sc_timer_task" of the "nilfs_sc_info" structure, which was added when timer_setup() was adopted to retain a reference to the log writer thread's task even after it had terminated, is no longer needed, as it should be; we can simply use "sc_task" instead, which holds a reference to the log writer thread's task for its lifetime. So, eliminate "sc_timer_task" by this means. Link: https://lkml.kernel.org/r/20240826174116.5008-7-konishi.ryusuke@gmail.com Signed-off-by: Ryusuke Konishi Cc: Huang Xiaojia Signed-off-by: Andrew Morton

nilfs2: fix inconsistencies in kernel-doc comments in segment.h

2024-09-02T03:43:36+00:00

Fix incorrect or missing variable names in the member variable descriptions in the nilfs_recovery_info and nilfs_sc_info structures, thereby eliminating the following warnings output by the kernel-doc script: fs/nilfs2/segment.h:49: warning: Function parameter or struct member 'ri_cno' not described in 'nilfs_recovery_info' fs/nilfs2/segment.h:49: warning: Function parameter or struct member 'ri_lsegs_start_seq' not described in 'nilfs_recovery_info' fs/nilfs2/segment.h:49: warning: Excess struct member 'ri_ri_cno' description in 'nilfs_recovery_info' fs/nilfs2/segment.h:49: warning: Excess struct member 'ri_lseg_start_seq' description in 'nilfs_recovery_info' fs/nilfs2/segment.h:177: warning: Function parameter or struct member 'sc_seq_accepted' not described in 'nilfs_sc_info' fs/nilfs2/segment.h:177: warning: Function parameter or struct member 'sc_timer_task' not described in 'nilfs_sc_info' fs/nilfs2/segment.h:177: warning: Excess struct member 'sc_seq_accept' description in 'nilfs_sc_info' Link: https://lkml.kernel.org/r/20240816074319.3253-8-konishi.ryusuke@gmail.com Signed-off-by: Ryusuke Konishi Signed-off-by: Andrew Morton

nilfs2: remove filenames from file comments

2021-11-09T18:02:52+00:00

Remove filenames that are not particularly useful in file comments, and suppress checkpatch warnings WARNING: It's generally not useful to have the filename in the file Link: https://lkml.kernel.org/r/1635151862-11547-3-git-send-email-konishi.ryusuke@gmail.com Signed-off-by: Ryusuke Konishi Cc: Qing Wang Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

nilfs2: convert to SPDX license tags

2018-09-04T23:45:02+00:00

Remove the verbose license text from NILFS2 files and replace them with SPDX tags. This does not change the license of any of the code. Link: http://lkml.kernel.org/r/1535624528-5982-1-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi Reviewed-by: Andrew Morton Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

nilfs2: use time64_t internally

2018-02-07T02:32:45+00:00

The superblock and segment timestamps are used only internally in nilfs2 and can be read out using sysfs. Since we are using the old 'get_seconds()' interface and store the data as timestamps, the behavior differs slightly between 64-bit and 32-bit kernels, the latter will show incorrect timestamps after 2038 in sysfs, and presumably fail completely in 2106 as comparisons go wrong. This changes nilfs2 to use time64_t with ktime_get_real_seconds() to handle timestamps, making the behavior consistent and correct on both 32-bit and 64-bit machines. The on-disk format already uses 64-bit timestamps, so nothing changes there. Link: http://lkml.kernel.org/r/20180122211050.1286441-1-arnd@arndb.de Signed-off-by: Arnd Bergmann Acked-by: Ryusuke Konishi Cc: Jens Axboe Cc: Ingo Molnar Cc: Jan Kara Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

fs/nilfs2: convert timers to use timer_setup()

2017-11-18T00:10:03+00:00

In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. This requires adding a pointer to hold the timer's target task, as the lifetime of sc_task doesn't appear to match the timer's task. Link: http://lkml.kernel.org/r/20171016235900.GA102729@beast Signed-off-by: Kees Cook Acked-by: Ryusuke Konishi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

nilfs2: move ioctl interface and disk layout to uapi separately

2016-08-02T23:35:21+00:00

The header file "include/linux/nilfs2_fs.h" is composed of parts for ioctl and disk format, and both are intended to be shared with user space programs. This moves them to the uapi directory "include/uapi/linux" splitting the file to "nilfs2_api.h" and "nilfs2_ondisk.h". The following minor changes are accompanied by this migration: - nilfs_direct_node struct in nilfs2/direct.h is converged to nilfs2_ondisk.h because it's an on-disk structure. - inline functions nilfs_rec_len_from_disk() and nilfs_rec_len_to_disk() are moved to nilfs2/dir.c. Link: http://lkml.kernel.org/r/1465825507-3407-4-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

nilfs2: fix block comments

2016-05-24T00:04:14+00:00

This fixes block comments with proper formatting to eliminate the following checkpatch.pl warnings: "WARNING: Block comments use * on subsequent lines" "WARNING: Block comments use a trailing */ on a separate line" Link: http://lkml.kernel.org/r/1462886671-3521-8-git-send-email-konishi.ryusuke@lab.ntt.co.jp Signed-off-by: Ryusuke Konishi Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds