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| author | David Howells <dhowells@redhat.com> | 2021-04-26 22:16:16 +0200 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2021-04-27 00:23:41 +0200 |
| commit | 53b776c77aca99b663a5512a04abc27670d61058 (patch) | |
| tree | 8b2144f8c4f1ddf47489c09605b646b03a032b93 /drivers/gpu/drm/vc4/vc4_plane.c | |
| parent | iov_iter: Four fixes for ITER_XARRAY (diff) | |
| download | linux-53b776c77aca99b663a5512a04abc27670d61058.tar.xz linux-53b776c77aca99b663a5512a04abc27670d61058.zip | |
netfs: Miscellaneous fixes
Fix some miscellaneous things in the new netfs lib[1]:
(1) The kerneldoc for netfs_readpage() shouldn't say netfs_page().
(2) netfs_readpage() can get an integer overflow on 32-bit when it
multiplies page_index(page) by PAGE_SIZE. It should use
page_file_offset() instead.
(3) netfs_write_begin() should use page_offset() to avoid the same
overflow.
Note that netfs_readpage() needs to use page_file_offset() rather than
page_offset() as it may see swap-over-NFS.
Reported-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Link: https://lore.kernel.org/r/161789062190.6155.12711584466338493050.stgit@warthog.procyon.org.uk/ [1]
Diffstat (limited to 'drivers/gpu/drm/vc4/vc4_plane.c')
0 files changed, 0 insertions, 0 deletions