This adds fs name and few fields from struct inode: i_mode, i_opflags,
i_flags, i_state and i_count.
All values printed raw, no attempt to pretty-print anything.
Compile tested on i386 and runtime tested on amd64.
Sample output:
[ 23.121281] VFS_WARN_ON_INODE("crap") encountered for inode ffff9a1a83ce3660
fs pipefs mode 10600 opflags 0x4 flags 0x0 state 0x38 count 0
Signed-off-by: Mateusz Guzik <mjguzik@xxxxxxxxx>
---
v2:
- use 0x for hex values
- add i_count
generated against master, cosmetic changes are needed against the
vfs-6.18.inode.refcount.preliminaries branch.
fs/inode.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/fs/inode.c b/fs/inode.c
index 01ebdc40021e..95fada5c45ea 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -2911,10 +2911,18 @@ EXPORT_SYMBOL(mode_strip_sgid);
*
* TODO: add a proper inode dumping routine, this is a stub to get debug off the
* ground.
+ *
+ * TODO: handle getting to fs type with get_kernel_nofault()?
+ * See dump_mapping() above.
*/
void dump_inode(struct inode *inode, const char *reason)
{
- pr_warn("%s encountered for inode %px", reason, inode);
+ struct super_block *sb = inode->i_sb;
+
+ pr_warn("%s encountered for inode %px\n"
+ "fs %s mode %ho opflags 0x%hx flags 0x%x state 0x%x count %d\n",
+ reason, inode, sb->s_type->name, inode->i_mode, inode->i_opflags,
+ inode->i_flags, inode->i_state, atomic_read(&inode->i_count));
}
EXPORT_SYMBOL(dump_inode);
--
2.43.0
