Matthew Wilcox (Oracle) 50b7d85680 ramfs: fix nommu mmap with gaps in the page cache ... ramfs needs to check that pages are both physically contiguous and contiguous in the file. If the page cache happens to have, eg, page A for index 0 of the file, no page for index 1, and page A+1 for index 2, then an mmap of the first two pages of the file will succeed when it should fail. Fixes: 642fb4d1f1 ("[PATCH] NOMMU: Provide shared-writable mmap support on ramfs") Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: David Howells <dhowells@redhat.com> Link: https://lkml.kernel.org/r/20200914122239.GO6583@casper.infradead.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2020-10-16 11:11:22 -07:00
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Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
file-mmu.c	ipc/shm: fix crash if CONFIG_SHMEM is not set	2016-09-19 15:36:17 -07:00
file-nommu.c	ramfs: fix nommu mmap with gaps in the page cache	2020-10-16 11:11:22 -07:00
inode.c	fs_parse: fold fs_parameter_desc/fs_parameter_spec	2020-02-07 14:48:37 -05:00
internal.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00