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authorYunlei He <heyunlei@huawei.com>2017-12-05 07:07:47 +0300
committerJaegeuk Kim <jaegeuk@kernel.org>2018-01-03 06:27:31 +0300
commit211a6fa04c56e8c57faca245880148bcb6419073 (patch)
treecd021c999b9f8de3b817c436ae870293382afed9 /fs/f2fs/dir.c
parent4635b46af2b3921829de09e4be1f6b71a62e4855 (diff)
downloadlinux-211a6fa04c56e8c57faca245880148bcb6419073.tar.xz
f2fs: fix an error case of missing update inode page
-Thread A Thread B -write_checkpoint -block_operations -f2fs_unlock_all -f2fs_sync_file -f2fs_write_inode -f2fs_inode_synced -f2fs_sync_inode_meta -sync_node_pages -set_page_drity In this case, if sudden power off without next new checkpoint, the last inode page update will lost. wb_writeback is same with fsync. Yunlei also reproduced the bug by: @@ -366,7 +366,7 @@ int update_inode(struct inode *inode, struct page *node_page) struct extent_tree *et = F2FS_I(inode)->extent_tree; f2fs_inode_synced(inode); - + msleep(10000); f2fs_wait_on_page_writeback(node_page, NODE, true); shell 1: shell2: dd if=/dev/zero of=./test bs=1M count=10 sync echo "hello" >> ./test fsync test // sleep 10s sync //return quickly echo c > /proc/sysrq-trigger Signed-off-by: Yunlei He <heyunlei@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/dir.c')
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