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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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b2f49033d8
Fix a deadlock possible in the ext2 file system implementation. This deadlock occurs when a file is removed from an ext2 file system which was mounted with the "sync" mount option. The problem is that ext2_xattr_delete_inode() was invoking the routine, sync_dirty_buffer(), using a buffer head which was previously locked via lock_buffer(). The first thing that sync_dirty_buffer() does is to lock the buffer head that it was passed. It does this via lock_buffer(). Oops. The solution is to unlock the buffer head in ext2_xattr_delete_inode() before invoking sync_dirty_buffer(). This makes the code in ext2_xattr_delete_inode() obey the same locking rules as all other callers of sync_dirty_buffer() in the ext2 file system implementation. Signed-off-by: Peter Staubach <staubach@redhat.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> |
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.. | ||
acl.c | ||
acl.h | ||
balloc.c | ||
bitmap.c | ||
dir.c | ||
ext2.h | ||
file.c | ||
fsync.c | ||
ialloc.c | ||
inode.c | ||
ioctl.c | ||
Makefile | ||
namei.c | ||
super.c | ||
symlink.c | ||
xattr_security.c | ||
xattr_trusted.c | ||
xattr_user.c | ||
xattr.c | ||
xattr.h | ||
xip.c | ||
xip.h |