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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Trond Myklebust <trond.myklebust@fys.uio.no>
Acked-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Trond Myklebust <trond.myklebust@fys.uio.no>
Acked-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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while doing a kernel make modules_install install over an NFS mount.
=============================================
[ INFO: possible recursive locking detected ]
---------------------------------------------
nfsd/9550 is trying to acquire lock:
(&inode->i_mutex){--..}, at: [<c034c845>] mutex_lock+0x1c/0x1f
but task is already holding lock:
(&inode->i_mutex){--..}, at: [<c034c845>] mutex_lock+0x1c/0x1f
other info that might help us debug this:
2 locks held by nfsd/9550:
#0: (hash_sem){..--}, at: [<cc895223>] exp_readlock+0xd/0xf [nfsd]
#1: (&inode->i_mutex){--..}, at: [<c034c845>] mutex_lock+0x1c/0x1f
stack backtrace:
[<c0103508>] show_trace_log_lvl+0x58/0x152
[<c0103b8b>] show_trace+0xd/0x10
[<c0103c2f>] dump_stack+0x19/0x1b
[<c012aa57>] __lock_acquire+0x77a/0x9a3
[<c012af4a>] lock_acquire+0x60/0x80
[<c034c6c2>] __mutex_lock_slowpath+0xa7/0x20e
[<c034c845>] mutex_lock+0x1c/0x1f
[<c0162edc>] vfs_unlink+0x34/0x8a
[<cc891d98>] nfsd_unlink+0x18f/0x1e2 [nfsd]
[<cc89884f>] nfsd3_proc_remove+0x95/0xa2 [nfsd]
[<cc88f0d4>] nfsd_dispatch+0xc0/0x178 [nfsd]
[<c033e84d>] svc_process+0x3a5/0x5ed
[<cc88f5ba>] nfsd+0x1a7/0x305 [nfsd]
[<c0101005>] kernel_thread_helper+0x5/0xb
DWARF2 unwinder stuck at kernel_thread_helper+0x5/0xb
Leftover inexact backtrace:
[<c0103b8b>] show_trace+0xd/0x10
[<c0103c2f>] dump_stack+0x19/0x1b
[<c012aa57>] __lock_acquire+0x77a/0x9a3
[<c012af4a>] lock_acquire+0x60/0x80
[<c034c6c2>] __mutex_lock_slowpath+0xa7/0x20e
[<c034c845>] mutex_lock+0x1c/0x1f
[<c0162edc>] vfs_unlink+0x34/0x8a
[<cc891d98>] nfsd_unlink+0x18f/0x1e2 [nfsd]
[<cc89884f>] nfsd3_proc_remove+0x95/0xa2 [nfsd]
[<cc88f0d4>] nfsd_dispatch+0xc0/0x178 [nfsd]
[<c033e84d>] svc_process+0x3a5/0x5ed
[<cc88f5ba>] nfsd+0x1a7/0x305 [nfsd]
[<c0101005>] kernel_thread_helper+0x5/0xb
=============================================
[ INFO: possible recursive locking detected ]
---------------------------------------------
nfsd/9580 is trying to acquire lock:
(&inode->i_mutex){--..}, at: [<c034cc1d>] mutex_lock+0x1c/0x1f
but task is already holding lock:
(&inode->i_mutex){--..}, at: [<c034cc1d>] mutex_lock+0x1c/0x1f
other info that might help us debug this:
2 locks held by nfsd/9580:
#0: (hash_sem){..--}, at: [<cc89522b>] exp_readlock+0xd/0xf [nfsd]
#1: (&inode->i_mutex){--..}, at: [<c034cc1d>] mutex_lock+0x1c/0x1f
stack backtrace:
[<c0103508>] show_trace_log_lvl+0x58/0x152
[<c0103b8b>] show_trace+0xd/0x10
[<c0103c2f>] dump_stack+0x19/0x1b
[<c012aa63>] __lock_acquire+0x77a/0x9a3
[<c012af56>] lock_acquire+0x60/0x80
[<c034ca9a>] __mutex_lock_slowpath+0xa7/0x20e
[<c034cc1d>] mutex_lock+0x1c/0x1f
[<cc892ad1>] nfsd_setattr+0x2c8/0x499 [nfsd]
[<cc893ede>] nfsd_create_v3+0x31b/0x4ac [nfsd]
[<cc8984a1>] nfsd3_proc_create+0x128/0x138 [nfsd]
[<cc88f0d4>] nfsd_dispatch+0xc0/0x178 [nfsd]
[<c033ec1d>] svc_process+0x3a5/0x5ed
[<cc88f5ba>] nfsd+0x1a7/0x305 [nfsd]
[<c0101005>] kernel_thread_helper+0x5/0xb
DWARF2 unwinder stuck at kernel_thread_helper+0x5/0xb
Leftover inexact backtrace:
[<c0103b8b>] show_trace+0xd/0x10
[<c0103c2f>] dump_stack+0x19/0x1b
[<c012aa63>] __lock_acquire+0x77a/0x9a3
[<c012af56>] lock_acquire+0x60/0x80
[<c034ca9a>] __mutex_lock_slowpath+0xa7/0x20e
[<c034cc1d>] mutex_lock+0x1c/0x1f
[<cc892ad1>] nfsd_setattr+0x2c8/0x499 [nfsd]
[<cc893ede>] nfsd_create_v3+0x31b/0x4ac [nfsd]
[<cc8984a1>] nfsd3_proc_create+0x128/0x138 [nfsd]
[<cc88f0d4>] nfsd_dispatch+0xc0/0x178 [nfsd]
[<c033ec1d>] svc_process+0x3a5/0x5ed
[<cc88f5ba>] nfsd+0x1a7/0x305 [nfsd]
[<c0101005>] kernel_thread_helper+0x5/0xb
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Neil Brown <neilb@suse.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This eliminates the i_blksize field from struct inode. Filesystems that want
to provide a per-inode st_blksize can do so by providing their own getattr
routine instead of using the generic_fillattr() function.
Note that some filesystems were providing pretty much random (and incorrect)
values for i_blksize.
[bunk@stusta.de: cleanup]
[akpm@osdl.org: generic_fillattr() fix]
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Signed-off-by: David Woodhouse <dwmw2@infradead.org>
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This patch converts the inode semaphore to a mutex. I have tested it on
XFS and compiled as much as one can consider on an ia64. Anyway your
luck with it might be different.
Modified-by: Ingo Molnar <mingo@elte.hu>
(finished the conversion)
Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
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