squashfs; convert squashfs_copy_cache() to take a folio

Remove accesses to page->index and page->mapping. Also use folio
APIs where available. This code still assumes order 0 folios.

[dan.carpent

squashfs; convert squashfs_copy_cache() to take a folio

Remove accesses to page->index and page->mapping. Also use folio
APIs where available. This code still assumes order 0 folios.

[[email protected]: fix a NULL vs IS_ERR() bug]
Link: https://lkml.kernel.org/r/[email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Matthew Wilcox (Oracle) <[email protected]>
Signed-off-by: Dan Carpenter <[email protected]>
Cc: Phillip Lougher <[email protected]>
Cc: Dan Carpenter <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

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squashfs: convert squashfs_readpage_block() to take a folio

Remove a few accesses to page->mapping.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Matthe

squashfs: convert squashfs_readpage_block() to take a folio

Remove a few accesses to page->mapping.

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Matthew Wilcox (Oracle) <[email protected]>
Cc: Phillip Lougher <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

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treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499

Based on 1 normalized pattern(s):

this work is licensed under the terms of the gnu gpl version 2 see
the copying file in the t

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 499

Based on 1 normalized pattern(s):

this work is licensed under the terms of the gnu gpl version 2 see
the copying file in the top level directory

extracted by the scancode license scanner the SPDX license identifier

GPL-2.0-only

has been chosen to replace the boilerplate/reference in 35 file(s).

Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Kate Stewart <[email protected]>
Reviewed-by: Enrico Weigelt <[email protected]>
Reviewed-by: Allison Randal <[email protected]>
Cc: [email protected]
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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Squashfs: Compute expected length from inode size rather than block length

Previously in squashfs_readpage() when copying data into the page
cache, it used the length of the datablock read from the

Squashfs: Compute expected length from inode size rather than block length

Previously in squashfs_readpage() when copying data into the page
cache, it used the length of the datablock read from the filesystem
(after decompression). However, if the filesystem has been corrupted
this data block may be short, which will leave pages unfilled.

The fix for this is to compute the expected number of bytes to copy
from the inode size, and use this to detect if the block is short.

Signed-off-by: Phillip Lougher <[email protected]>
Tested-by: Willy Tarreau <[email protected]>
Cc: Анатолий Тросиненко <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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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 e

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 <[email protected]>
Reviewed-by: Minchan Kim <[email protected]>

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