Peter Zijlstra 4b75f78edc [PATCH] lockdep: annotate nfsd4 recover code ... > ============================================= > [ INFO: possible recursive locking detected ] > 2.6.18-1.2724.lockdepPAE #1 > --------------------------------------------- > nfsd/6884 is trying to acquire lock: > (&inode->i_mutex){--..}, at: [<c04811e5>] vfs_rmdir+0x73/0xf4 > > but task is already holding lock: > (&inode->i_mutex){--..}, at: [<f8dfa621>] > nfsd4_clear_clid_dir+0x1f/0x3d [nfsd] > > other info that might help us debug this: > 3 locks held by nfsd/6884: > #0: (hash_sem){----}, at: [<f8de05eb>] nfsd+0x181/0x2ea [nfsd] > #1: (client_mutex){--..}, at: [<f8df6d19>] > nfsd4_setclientid_confirm+0x3b/0x2cf [nfsd] > #2: (&inode->i_mutex){--..}, at: [<f8dfa621>] > nfsd4_clear_clid_dir+0x1f/0x3d [nfsd] > > stack backtrace: > [<c040524d>] dump_trace+0x69/0x1af > [<c04053ab>] show_trace_log_lvl+0x18/0x2c > [<c040595f>] show_trace+0xf/0x11 > [<c0405a53>] dump_stack+0x15/0x17 > [<c043ca7a>] __lock_acquire+0x110/0x9b6 > [<c043d91e>] lock_acquire+0x5c/0x7a > [<c061a41b>] __mutex_lock_slowpath+0xde/0x234 > [<c04811e5>] vfs_rmdir+0x73/0xf4 > [<f8dfa62b>] nfsd4_clear_clid_dir+0x29/0x3d [nfsd] > [<f8dfa733>] nfsd4_remove_clid_dir+0xb8/0xf8 [nfsd] > [<f8df6e90>] nfsd4_setclientid_confirm+0x1b2/0x2cf [nfsd] > [<f8def19a>] nfsd4_proc_compound+0x137a/0x166c [nfsd] > [<f8de00d5>] nfsd_dispatch+0xc5/0x180 [nfsd] > [<f8d09d83>] svc_process+0x3bd/0x631 [sunrpc] > [<f8de0604>] nfsd+0x19a/0x2ea [nfsd] > [<c0404e27>] kernel_thread_helper+0x7/0x10 > DWARF2 unwinder stuck at kernel_thread_helper+0x7/0x10 > Leftover inexact backtrace: > ======================= Some nesting annotation to the nfsd4 recovery code. The vfs operations called will take dentry->d_inode->i_mutex. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2006-12-08 08:29:01 -08:00
..
auth.c	[PATCH] knfsd: nfsd: nfsd_setuser doesn't really need to modify rqstp->rq_cred.	2006-04-11 06:18:52 -07:00
export.c	[PATCH] nfsd: misc endianness annotations	2006-10-20 10:26:43 -07:00
lockd.c	[PATCH] nfsd: misc endianness annotations	2006-10-20 10:26:43 -07:00
Makefile	[PATCH] knfsd: nfsd4: reboot hash	2005-06-24 00:06:33 -07:00
nfs2acl.c	[PATCH] nfsd: NFSv{2,3} trivial endianness annotations for error values	2006-10-20 10:26:42 -07:00
nfs3acl.c	[PATCH] nfsd: NFSv{2,3} trivial endianness annotations for error values	2006-10-20 10:26:42 -07:00
nfs3proc.c	[PATCH] nfsd4: fix open-create permissions	2006-11-08 18:29:23 -08:00
nfs3xdr.c	[PATCH] remove NFSD_OPTIMIZE_SPACE	2006-12-07 08:39:45 -08:00
nfs4acl.c	[PATCH] knfsd: nfsd4: acls: fix handling of zero-length acls	2006-10-04 07:55:20 -07:00
nfs4callback.c	[PATCH] nfsd: misc endianness annotations	2006-10-20 10:26:43 -07:00
nfs4idmap.c	[PATCH] fs: Conversions from kmalloc+memset to k(z|c)alloc	2006-09-27 08:26:10 -07:00
nfs4proc.c	[PATCH] nfsd4: fix open-create permissions	2006-11-08 18:29:23 -08:00
nfs4recover.c	[PATCH] lockdep: annotate nfsd4 recover code	2006-12-08 08:29:01 -08:00
nfs4state.c	[PATCH] nfsd: change uses of f_{dentry, vfsmnt} to use f_path	2006-12-08 08:28:42 -08:00
nfs4xdr.c	[PATCH] nfsd: NFSv4 errno endianness annotations	2006-10-20 10:26:43 -07:00
nfscache.c	[PATCH] nfsd: misc endianness annotations	2006-10-20 10:26:43 -07:00
nfsctl.c	[PATCH] nfsd: change uses of f_{dentry, vfsmnt} to use f_path	2006-12-08 08:28:42 -08:00
nfsfh.c	[PATCH] nfsfh simple endianness annotations	2006-10-20 10:26:41 -07:00
nfsproc.c	[PATCH] nfsd: NFSv{2,3} trivial endianness annotations for error values	2006-10-20 10:26:42 -07:00
nfssvc.c	[PATCH] nfsd: misc endianness annotations	2006-10-20 10:26:43 -07:00
nfsxdr.c	[PATCH] remove NFSD_OPTIMIZE_SPACE	2006-12-07 08:39:45 -08:00
stats.c	[PATCH] knfsd: nfsd4: add per-operation server stats	2006-07-10 13:24:27 -07:00
vfs.c	[PATCH] nfsd: change uses of f_{dentry, vfsmnt} to use f_path	2006-12-08 08:28:42 -08:00