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(parent: 76e9782) | patch
bugfix: handle lower file systems that do not support writeable mappings
authorErez_Zadok <ezk@cs.sunysb.edu>
Thu, 24 May 2007 01:26:01 +0000 (21:26 -0400)
committerErez Zadok <ezk@cs.sunysb.edu>
Tue, 13 Jan 2009 01:43:07 +0000 (20:43 -0500)
commit6bb576a19bdfb142ee16b3c71cafa6cfc4e23cdd
tree4b5440afe8b3f3730fc1f51a3a87aba9ef5e0129tree | snapshot
parent76e97824bca8139cea4ebfe1b59883fee309ba74commit | diff
bugfix: handle lower file systems that do not support writeable mappings

File systems such as jffs2 (tested in 2.6.22-rc22) do not have a
->writepage.  Make sure unionfs detects that conditions and returns EINVAL
when a user tries to mmap such a file with VM_WRITE.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
fs/unionfs/file.c diff | blob | history
unionfs2-2.6.26.y