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fs: expand dump_inode() 

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@gmail.com>
This commit is contained in:
Mateusz Guzik 2025-09-11 08:56:41 +02:00 committed by Christian Brauner
parent 90ccf10de5
commit cde560f98a
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GPG Key ID: 91C61BC06578DCA2
1 changed files with 9 additions and 1 deletions
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10
fs/inode.c
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@ -2935,10 +2935,18 @@ 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);