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(parent: 822c90e) | patch
bugfix: prevent a NULL ptr deref if branch is nfs and using mmap writes
authorErez_Zadok <ezk@cs.sunysb.edu>
Thu, 24 May 2007 01:27:58 +0000 (21:27 -0400)
committerErez_Zadok <ezk@cs.sunysb.edu>
Mon, 23 Jul 2007 00:50:43 +0000 (20:50 -0400)
commit4d3517c1ce454267fe8e2a5480169e4a254da38c
tree8cfe6fc23dd82fe554da339768bb928050936c1ctree | snapshot
parent822c90ef39195aea4c189890b6e8d7cc8c9e7b02commit | diff
bugfix: prevent a NULL ptr deref if branch is nfs and using mmap writes

By some strange condition, the VFS can pass our unionfs_writepage a
writeback_control structure which, if passed as is to the lower ->writepage
-- here nfs_writepage, triggers a NULL ptr deref in NFS.  This fix works
around this issue, and results in a successfully written mmaped file.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
fs/unionfs/mmap.c diff | blob | history
wrapfs-5.3.y