https://github.com/torvalds/linux
Revision 335e92e8a515420bd47a6b0f01cb9a206c0ed6e4 authored by Jan Kara on 15 April 2008, 21:34:43 UTC, committed by Linus Torvalds on 16 April 2008, 02:35:41 UTC
mb_cache_entry_alloc() was allocating cache entries with GFP_KERNEL. But filesystems are calling this function while holding xattr_sem so possible recursion into the fs violates locking ordering of xattr_sem and transaction start / i_mutex for ext2-4. Change mb_cache_entry_alloc() so that filesystems can specify desired gfp mask and use GFP_NOFS from all of them. Signed-off-by: Jan Kara <jack@suse.cz> Reported-by: Dave Jones <davej@redhat.com> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Tip revision: 335e92e8a515420bd47a6b0f01cb9a206c0ed6e4 authored by Jan Kara on 15 April 2008, 21:34:43 UTC
vfs: fix possible deadlock in ext2, ext3, ext4 when using xattrs
vfs: fix possible deadlock in ext2, ext3, ext4 when using xattrs
Tip revision: 335e92e
| File | Mode | Size |
|---|---|---|
| Documentation | ||
| arch | ||
| block | ||
| crypto | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| usr | ||
| virt | ||
| .gitignore | -rw-r--r-- | 644 bytes |
| .mailmap | -rw-r--r-- | 3.6 KB |
| COPYING | -rw-r--r-- | 18.3 KB |
| CREDITS | -rw-r--r-- | 90.4 KB |
| Kbuild | -rw-r--r-- | 1.6 KB |
| MAINTAINERS | -rw-r--r-- | 94.9 KB |
| Makefile | -rw-r--r-- | 52.8 KB |
| README | -rw-r--r-- | 16.5 KB |
| REPORTING-BUGS | -rw-r--r-- | 3.1 KB |
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