f2fs:compress: fix a bug #1
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Previously, there was a bug where user could see stale buffer cache (e.g, 512B) attached in the 4KB-sized pager cache, when the block size was changed from 512B to 4KB. That was fixed by: commit 5db470e ("loop: drop caches if offset or block_size are changed") But, there were some regression reports saying the fix returns EAGAIN easily. So, this patch removes previously added EAGAIN condition, nrpages != 0. Instead, it changes the flow like this: - sync_blockdev() - blk_mq_freeze_queue() : change the loop configuration - blk_mq_unfreeze_queue() - sync_blockdev() - invalidate_bdev() After invalidating the buffer cache, we must see the full valid 4KB page. Additional concern came from Bart in which we can lose some data when changing the lo_offset. In that case, this patch adds: - sync_blockdev() - blk_set_queue_dying - blk_mq_freeze_queue() : change the loop configuration - blk_mq_unfreeze_queue() - blk_queue_flag_clear(QUEUE_FLAG_DYING); - sync_blockdev() - invalidate_bdev() Report: https://bugs.chromium.org/p/chromium/issues/detail?id=938958#c38 Cc: <[email protected]> Cc: Jens Axboe <[email protected]> Cc: [email protected] Cc: Bart Van Assche <[email protected]> Fixes: 5db470e ("loop: drop caches if offset or block_size are changed") Reported-by: Gwendal Grignou <[email protected]> Reported-by: grygorii tertychnyi <[email protected]> Reviewed-by: Bart Van Assche <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
…writing some files would fail when cluster.idx did not add
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1. ioctl(fd1, F2FS_IOC_DONATE_RANGE, {0,3});
2. ioctl(fd2, F2FS_IOC_DONATE_RANGE, {1,2});
3. ioctl(fd3, F2FS_IOC_DONATE_RANGE, {3,1});
4. echo 3 > /sys/fs/f2fs/blk/donate_caches
will reclaim 3 page cache ranges, registered by #1, #2, and #3.
Signed-off-by: Jaegeuk Kim <[email protected]>
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1. ioctl(fd1, F2FS_IOC_DONATE_RANGE, {0,3});
2. ioctl(fd2, F2FS_IOC_DONATE_RANGE, {1,2});
3. ioctl(fd3, F2FS_IOC_DONATE_RANGE, {3,1});
4. echo 3 > /sys/fs/f2fs/blk/donate_caches
will reclaim 3 page cache ranges, registered by #1, #2, and #3.
Signed-off-by: Jaegeuk Kim <[email protected]>
jaegeuk
pushed a commit
that referenced
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Jan 8, 2025
1. ioctl(fd1, F2FS_IOC_DONATE_RANGE, {0,3});
2. ioctl(fd2, F2FS_IOC_DONATE_RANGE, {1,2});
3. ioctl(fd3, F2FS_IOC_DONATE_RANGE, {3,1});
4. echo 3 > /sys/fs/f2fs/blk/donate_caches
will reclaim 3 page cache ranges, registered by #1, #2, and #3.
Signed-off-by: Jaegeuk Kim <[email protected]>
jaegeuk
pushed a commit
that referenced
this pull request
Jan 8, 2025
1. ioctl(fd1, F2FS_IOC_DONATE_RANGE, {0,3});
2. ioctl(fd2, F2FS_IOC_DONATE_RANGE, {1,2});
3. ioctl(fd3, F2FS_IOC_DONATE_RANGE, {3,1});
4. echo 3 > /sys/fs/f2fs/blk/donate_caches
will reclaim 3 page cache ranges, registered by #1, #2, and #3.
Signed-off-by: Jaegeuk Kim <[email protected]>
jaegeuk
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Jan 13, 2025
1. ioctl(fd1, F2FS_IOC_DONATE_RANGE, {0,3});
2. ioctl(fd2, F2FS_IOC_DONATE_RANGE, {1,2});
3. ioctl(fd3, F2FS_IOC_DONATE_RANGE, {3,1});
4. echo 3 > /sys/fs/f2fs/blk/donate_caches
will reclaim 3 page cache ranges, registered by #1, #2, and #3.
Signed-off-by: Jaegeuk Kim <[email protected]>
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1. ioctl(fd1, F2FS_IOC_DONATE_RANGE, {0,3});
2. ioctl(fd2, F2FS_IOC_DONATE_RANGE, {1,2});
3. ioctl(fd3, F2FS_IOC_DONATE_RANGE, {3,1});
4. echo 3 > /sys/fs/f2fs/blk/donate_caches
will reclaim 3 page cache ranges, registered by #1, #2, and #3.
Signed-off-by: Jaegeuk Kim <[email protected]>
jaegeuk
pushed a commit
that referenced
this pull request
Jan 14, 2025
1. ioctl(fd1, F2FS_IOC_DONATE_RANGE, {0,3});
2. ioctl(fd2, F2FS_IOC_DONATE_RANGE, {1,2});
3. ioctl(fd3, F2FS_IOC_DONATE_RANGE, {3,1});
4. echo 3 > /sys/fs/f2fs/blk/donate_caches
will reclaim 3 page cache ranges, registered by #1, #2, and #3.
Signed-off-by: Jaegeuk Kim <[email protected]>
jaegeuk
pushed a commit
that referenced
this pull request
Jan 14, 2025
1. ioctl(fd1, F2FS_IOC_DONATE_RANGE, {0,3});
2. ioctl(fd2, F2FS_IOC_DONATE_RANGE, {1,2});
3. ioctl(fd3, F2FS_IOC_DONATE_RANGE, {3,1});
4. echo 3 > /sys/fs/f2fs/blk/donate_caches
will reclaim 3 page cache ranges, registered by #1, #2, and #3.
Signed-off-by: Jaegeuk Kim <[email protected]>
jaegeuk
pushed a commit
that referenced
this pull request
Jan 14, 2025
1. ioctl(fd1, F2FS_IOC_DONATE_RANGE, {0,3});
2. ioctl(fd2, F2FS_IOC_DONATE_RANGE, {1,2});
3. ioctl(fd3, F2FS_IOC_DONATE_RANGE, {3,1});
4. echo 3 > /sys/fs/f2fs/blk/donate_caches
will reclaim 3 page cache ranges, registered by #1, #2, and #3.
Signed-off-by: Jaegeuk Kim <[email protected]>
jaegeuk
pushed a commit
that referenced
this pull request
Jan 15, 2025
1. ioctl(fd1, F2FS_IOC_DONATE_RANGE, {0,3});
2. ioctl(fd2, F2FS_IOC_DONATE_RANGE, {1,2});
3. ioctl(fd3, F2FS_IOC_DONATE_RANGE, {3,1});
4. echo 3 > /sys/fs/f2fs/blk/donate_caches
will reclaim 3 page cache ranges, registered by #1, #2, and #3.
Signed-off-by: Jaegeuk Kim <[email protected]>
jaegeuk
pushed a commit
that referenced
this pull request
Jan 16, 2025
1. ioctl(fd1, F2FS_IOC_DONATE_RANGE, {0,3});
2. ioctl(fd2, F2FS_IOC_DONATE_RANGE, {1,2});
3. ioctl(fd3, F2FS_IOC_DONATE_RANGE, {3,1});
4. echo 3 > /sys/fs/f2fs/blk/donate_caches
will reclaim 3 page cache ranges, registered by #1, #2, and #3.
Signed-off-by: Jaegeuk Kim <[email protected]>
jaegeuk
pushed a commit
that referenced
this pull request
Jan 16, 2025
1. ioctl(fd1, F2FS_IOC_DONATE_RANGE, {0,3});
2. ioctl(fd2, F2FS_IOC_DONATE_RANGE, {1,2});
3. ioctl(fd3, F2FS_IOC_DONATE_RANGE, {3,1});
4. echo 3 > /sys/fs/f2fs/blk/donate_caches
will reclaim 3 page cache ranges, registered by #1, #2, and #3.
Signed-off-by: Jaegeuk Kim <[email protected]>
jaegeuk
pushed a commit
that referenced
this pull request
Jan 16, 2025
1. ioctl(fd1, F2FS_IOC_DONATE_RANGE, {0,3});
2. ioctl(fd2, F2FS_IOC_DONATE_RANGE, {1,2});
3. ioctl(fd3, F2FS_IOC_DONATE_RANGE, {3,1});
4. echo 3 > /sys/fs/f2fs/blk/donate_caches
will reclaim 3 page cache ranges, registered by #1, #2, and #3.
Signed-off-by: Jaegeuk Kim <[email protected]>
jaegeuk
pushed a commit
that referenced
this pull request
Jan 17, 2025
1. ioctl(fd1, F2FS_IOC_DONATE_RANGE, {0,3});
2. ioctl(fd2, F2FS_IOC_DONATE_RANGE, {1,2});
3. ioctl(fd3, F2FS_IOC_DONATE_RANGE, {3,1});
4. echo 3 > /sys/fs/f2fs/blk/donate_caches
will reclaim 3 page cache ranges, registered by #1, #2, and #3.
Signed-off-by: Jaegeuk Kim <[email protected]>
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f2fs:compress: Update isize after compress_write_end, otherwise apendwriting some files would fail when cluster.idx did not add