Messages in this thread Patch in this message | | | From | Yanjun Zhang <> | Subject | [PATCH] writeback: add warning messages for not registered bdi | Date | Thu, 17 Dec 2020 19:28:01 +0800 |
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The device name is only printed for the warning case, that bdi is not registered detected by the function __mark_inode_dirty. Besides, the device name returned by bdi_dev_name may be "(unknown)" in some cases.
This patch add printed messages about the inode and super block. Once trigging this warning, we could make more direct analysis.
Signed-off-by: Yanjun Zhang <zhang.yanjuna@h3c.com> --- fs/fs-writeback.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index e6005c78b..825160cf4 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -2323,7 +2323,8 @@ void __mark_inode_dirty(struct inode *inode, int flags) WARN((wb->bdi->capabilities & BDI_CAP_WRITEBACK) && !test_bit(WB_registered, &wb->state), - "bdi-%s not registered\n", bdi_dev_name(wb->bdi)); + "bdi-%s not registered, dirtied inode %lu on %s\n", + bdi_dev_name(wb->bdi), inode->i_ino, sb->s_id); inode->dirtied_when = jiffies; if (dirtytime) -- 2.17.1
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