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authorJaegeuk Kim <jaegeuk.kim@samsung.com>2013-10-28 13:17:54 +0900
committerJaegeuk Kim <jaegeuk.kim@samsung.com>2013-10-28 13:39:09 +0900
commit2ed2d5b33cb564025b1eb90650d70a0a3592c0e3 (patch)
tree650796f8962c82818464f1c03feecbc9d0bc551f /fs/f2fs/Kconfig
parentb8b60e1a65893728ca868493cb4c4b64b55e7f9c (diff)
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f2fs: fix a deadlock during init_acl procedure
The deadlock is found through the following scenario. sys_mkdir() -> f2fs_add_link() -> __f2fs_add_link() -> init_inode_metadata() : lock_page(inode); -> f2fs_init_acl() -> f2fs_set_acl() -> f2fs_setxattr(..., NULL) : This NULL page incurs a deadlock at update_inode_page(). So, likewise f2fs_init_security(), this patch adds a parameter to transfer the locked inode page to f2fs_setxattr(). Found by Linux File System Verification project (linuxtesting.org). Reported-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs/Kconfig')
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