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authorPhillip Lougher <phillip@squashfs.org.uk>2013-10-31 20:24:27 +0100
committerPhillip Lougher <phillip@squashfs.org.uk>2013-11-20 04:59:07 +0100
commit5f55dbc0c5c466a9cdfa4da7ac1bfe351c7fc52a (patch)
treedccfe66c090bfd05c75f5d6a1cc31bf138bd76b1 /fs/squashfs/squashfs.h
parentSquashfs: Generalise paging handling in the decompressors (diff)
downloadlinux-5f55dbc0c5c466a9cdfa4da7ac1bfe351c7fc52a.tar.xz
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Squashfs: Restructure squashfs_readpage()
Restructure squashfs_readpage() splitting it into separate functions for datablocks, fragments and sparse blocks. Move the memcpying (from squashfs cache entry) implementation of squashfs_readpage_block into file_cache.c This allows different implementations to be supported. Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk> Reviewed-by: Minchan Kim <minchan@kernel.org>
Diffstat (limited to 'fs/squashfs/squashfs.h')
-rw-r--r--fs/squashfs/squashfs.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/squashfs/squashfs.h b/fs/squashfs/squashfs.h
index 6a97e63ca173..9e1bb79f7e6f 100644
--- a/fs/squashfs/squashfs.h
+++ b/fs/squashfs/squashfs.h
@@ -66,6 +66,13 @@ extern int squashfs_frag_lookup(struct super_block *, unsigned int, u64 *);
extern __le64 *squashfs_read_fragment_index_table(struct super_block *,
u64, u64, unsigned int);
+/* file.c */
+void squashfs_copy_cache(struct page *, struct squashfs_cache_entry *, int,
+ int);
+
+/* file_xxx.c */
+extern int squashfs_readpage_block(struct page *, u64, int);
+
/* id.c */
extern int squashfs_get_id(struct super_block *, unsigned int, unsigned int *);
extern __le64 *squashfs_read_id_index_table(struct super_block *, u64, u64,