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Nicolas Pitre fd4f6f2a78 cramfs: implement uncompressed and arbitrary data block positioning 
Two new capabilities are introduced here:

- The ability to store some blocks uncompressed.

- The ability to locate blocks anywhere.

Those capabilities can be used independently, but the combination
opens the possibility for execute-in-place (XIP) of program text segments
that must remain uncompressed, and in the MMU case, must have a specific
alignment.  It is even possible to still have the writable data segments
from the same file compressed as they have to be copied into RAM anyway.

This is achieved by giving special meanings to some unused block pointer
bits while remaining compatible with legacy cramfs images.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Tested-by: Chris Brandt <chris.brandt@renesas.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2017-10-15 00:47:22 -04:00
..
9p
Merge branch 'akpm' (patches from Andrew)
2017-09-06 20:49:49 -07:00
adfs
…
affs
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:54:01 -07:00
afs
Merge branch 'akpm' (patches from Andrew)
2017-09-06 20:49:49 -07:00
autofs4
Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:13:32 -07:00
befs
VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb)
2017-07-17 08:45:34 +01:00
bfs
bfs: fix sanity checks for empty files
2017-07-12 16:26:00 -07:00
btrfs
Merge branch 'for-4.14-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
2017-10-06 09:03:08 -07:00
cachefiles
VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb)
2017-07-17 08:45:34 +01:00
ceph
ceph: fix __choose_mds() for LSSNAP request
2017-10-02 16:18:16 +02:00
cifs
SMB3: Don't ignore O_SYNC/O_DSYNC and O_DIRECT flags
2017-09-22 19:47:17 -05:00
coda
fs: fix kernel_read prototype
2017-09-04 19:05:15 -04:00
configfs
configfs: Introduce config_item_get_unless_zero()
2017-06-12 13:20:20 +02:00
cramfs
cramfs: implement uncompressed and arbitrary data block positioning
2017-10-15 00:47:22 -04:00
crypto
block: replace bi_bdev with a gendisk pointer and partitions index
2017-08-23 12:49:55 -06:00
debugfs
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-07-15 12:00:42 -07:00
devpts
pty: Repair TIOCGPTPEER
2017-08-24 13:23:03 -07:00
dlm
File locking related changes for v4.14
2017-09-06 13:43:26 -07:00
ecryptfs
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:54:01 -07:00
efivarfs
VFS: Kill off s_options and helpers
2017-07-11 06:09:21 -04:00
efs
VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb)
2017-07-17 08:45:34 +01:00
exofs
Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block
2017-09-07 11:59:42 -07:00
exportfs
Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-03-03 11:38:56 -08:00
ext2
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:54:01 -07:00
ext4
Merge branch 'work.read_write' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 19:29:55 -07:00
f2fs
for-f2fs-4.14
2017-09-12 20:05:58 -07:00
fat
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:54:01 -07:00
freevxfs
…
fscache
fscache: fix fscache_objlist_show format processing
2017-09-13 18:53:15 -07:00
fuse
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
2017-09-13 10:10:19 -07:00
gfs2
GFS2: Fix an old regression in GFS2's debugfs interface
2017-09-25 15:41:56 -07:00
hfs
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:54:01 -07:00
hfsplus
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:54:01 -07:00
hostfs
fs: convert a pile of fsync routines to errseq_t based reporting
2017-08-01 08:39:29 -04:00
hpfs
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:54:01 -07:00
hugetlbfs
lib/interval_tree: fast overlap detection
2017-09-08 18:26:49 -07:00
isofs
isofs: fix build regression
2017-09-18 12:24:26 +02:00
jbd2
Writeback error handling fixes (pile #2)
2017-07-07 19:38:17 -07:00
jffs2
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:54:01 -07:00
jfs
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:54:01 -07:00
kernfs
Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block
2017-09-07 11:59:42 -07:00
lockd
NFS client updates for Linux 4.14
2017-09-11 22:01:44 -07:00
minix
VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb)
2017-07-17 08:45:34 +01:00
ncpfs
fs: convert a pile of fsync routines to errseq_t based reporting
2017-08-01 08:39:29 -04:00
nfs
NFS client bugfixes for Linux 4.14
2017-09-14 20:04:32 -07:00
nfs_common
…
nfsd
More RDMA work and some op-structure constification from Chuck Lever,
2017-09-09 13:31:49 -07:00
nilfs2
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:54:01 -07:00
nls
…
notify
fsnotify: make dnotify_fsnotify_ops const
2017-08-30 16:02:48 +02:00
ntfs
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:54:01 -07:00
ocfs2
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:54:01 -07:00
omfs
omfs: Implement show_options
2017-07-06 03:31:46 -04:00
openpromfs
…
orangefs
orangefs: Adjust three checks for null pointers
2017-09-14 14:58:31 -04:00
overlayfs
ovl: fix regression caused by exclusive upper/work dir protection
2017-10-05 15:53:18 +02:00
proc
sched/debug: Add explicit TASK_PARKED printing
2017-09-29 11:02:57 +02:00
pstore
Revert "pstore: Honor dmesg_restrict sysctl on dmesg dumps"
2017-08-17 16:29:19 -07:00
qnx4
…
qnx6
…
quota
quota: Fix quota corruption with generic/232 test
2017-09-27 11:33:47 +02:00
ramfs
mm: make pagevec_lookup() update index
2017-09-06 17:27:26 -07:00
reiserfs
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:54:01 -07:00
romfs
…
squashfs
squashfs: Add zstd support
2017-09-08 19:33:25 -07:00
sysfs
sysfs: be careful of error returns from ops->show()
2017-04-08 17:33:32 +02:00
sysv
VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb)
2017-07-17 08:45:34 +01:00
tracefs
VFS: Don't use save/replace_mount_options if not using generic_show_options
2017-07-06 03:31:46 -04:00
ubifs
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:54:01 -07:00
udf
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:54:01 -07:00
ufs
VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb)
2017-07-17 08:45:34 +01:00
xfs
xfs: handle racy AIO in xfs_reflink_end_cow
2017-10-03 21:27:55 -07:00
aio.c
Merge branch 'work.read_write' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 19:29:55 -07:00
anon_inodes.c
…
attr.c
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>
2017-03-02 08:42:29 +01:00
bad_inode.c
statx: Add a system call to make enhanced file info available
2017-03-02 20:51:15 -05:00
binfmt_aout.c
fs: fix kernel_read prototype
2017-09-04 19:05:15 -04:00
binfmt_elf_fdpic.c
Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:13:32 -07:00
binfmt_elf.c
Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:13:32 -07:00
binfmt_em86.c
…
binfmt_flat.c
Merge branch 'work.set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:13:32 -07:00
binfmt_misc.c
exec: binfmt_misc: kill the onstack iname[BINPRM_BUF_SIZE] array
2017-10-03 17:54:25 -07:00
binfmt_script.c
exec: load_script: kill the onstack interp[BINPRM_BUF_SIZE] array
2017-10-03 17:54:25 -07:00
block_dev.c
Merge branch 'work.read_write' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 19:29:55 -07:00
buffer.c
Merge branch 'for-4.14/block' of git://git.kernel.dk/linux-block
2017-09-07 11:59:42 -07:00
char_dev.c
char_dev: order /proc/devices by major number
2017-07-17 15:28:50 +02:00
compat_binfmt_elf.c
…
compat_ioctl.c
media: get rid of removed DMX_GET_CAPS and DMX_SET_SOURCE leftovers
2017-09-05 08:25:07 -04:00
compat.c
fs/compat.c: trim unused includes
2017-04-17 12:52:27 -04:00
coredump.c
mm: treewide: remove GFP_TEMPORARY allocation flag
2017-09-13 18:53:16 -07:00
dax.c
- Some request-based DM core and DM multipath fixes and cleanups
2017-09-14 13:43:16 -07:00
dcache.c
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-07-15 12:00:42 -07:00
dcookies.c
…
direct-io.c
fs: Fix page cache inconsistency when mixing buffered and AIO DIO
2017-09-25 08:56:05 -06:00
drop_caches.c
…
eventfd.c
There has been a fair amount of activity in the docs tree this time
2017-07-03 21:13:25 -07:00
eventpoll.c
fs/epoll: use faster rb_first_cached()
2017-09-08 18:26:49 -07:00
exec.c
exec: load_script: kill the onstack interp[BINPRM_BUF_SIZE] array
2017-10-03 17:54:25 -07:00
fcntl.c
fcntl: Don't set si_code to SI_SIGIO when sig == SIGPOLL
2017-09-18 22:51:14 -05:00
fhandle.c
fhandle: move compat syscalls from compat.c
2017-04-17 12:52:26 -04:00
file_table.c
fput: Don't reinvent the wheel but use existing llist API
2017-08-28 00:50:23 -04:00
file.c
fs/file.c: replace alloc_fdmem() with kvmalloc() alternative
2017-07-06 16:24:30 -07:00
filesystems.c
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-07-15 12:00:42 -07:00
fs_pin.c
sched/wait: Disambiguate wq_entry->task_list and wq_head->task_list naming
2017-06-20 12:19:14 +02:00
fs_struct.c
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>
2017-03-02 08:42:35 +01:00
fs-writeback.c
writeback: rework wb_[dec|inc]_stat family of functions
2017-07-12 16:26:05 -07:00
inode.c
Merge branch 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
2017-09-13 09:11:44 -07:00
internal.h
Merge branch 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
2017-09-13 09:11:44 -07:00
ioctl.c
sched/headers: Prepare for the reduction of <linux/sched.h>'s signal API dependency
2017-03-02 08:42:37 +01:00
iomap.c
Changes since last update:
2017-09-28 13:27:23 -07:00
Kconfig
fs/Kconfig: kill CONFIG_PERCPU_RWSEM some more
2017-07-12 16:26:00 -07:00
Kconfig.binfmt
…
libfs.c
fs: convert __generic_file_fsync to use errseq_t based reporting
2017-07-06 07:02:29 -04:00
locks.c
locks: restore a warn for leaked locks on close
2017-07-21 13:57:31 -04:00
Makefile
…
mbcache.c
ext4: xattr inode deduplication
2017-06-22 11:44:55 -04:00
mount.h
Now that IPC and other changes have landed, enable manual markings for
2017-07-19 08:55:18 -07:00
mpage.c
block: replace bi_bdev with a gendisk pointer and partitions index
2017-08-23 12:49:55 -06:00
namei.c
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:54:01 -07:00
namespace.c
ovl: fix may_write_real() for overlayfs directories
2017-10-05 15:53:18 +02:00
no-block.c
…
nsfs.c
VFS: Provide empty name qstr
2017-07-06 03:27:09 -04:00
open.c
ovl: don't allow writing ioctl on lower layer
2017-09-05 12:53:12 +02:00
pipe.c
VFS: Provide empty name qstr
2017-07-06 03:27:09 -04:00
pnode.c
mnt: Make propagate_umount less slow for overlapping mount propagation trees
2017-05-23 08:41:17 -05:00
pnode.h
…
posix_acl.c
sched/headers: Prepare to remove <linux/cred.h> inclusion from <linux/sched.h>
2017-03-02 08:42:31 +01:00
proc_namespace.c
VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb)
2017-07-17 08:45:34 +01:00
read_write.c
vfs: Return -ENXIO for negative SEEK_HOLE / SEEK_DATA offsets
2017-09-26 13:46:06 -07:00
readdir.c
readdir: move compat syscalls from compat.c
2017-04-17 12:52:24 -04:00
select.c
fs/select: Fix memory corruption in compat_get_fd_set()
2017-08-28 16:09:19 -07:00
seq_file.c
mm: introduce kv[mz]alloc helpers
2017-05-08 17:15:12 -07:00
signalfd.c
signal: Remove kernel interal si_code magic
2017-07-24 14:30:28 -05:00
splice.c
fs: move kernel_write to fs/read_write.c
2017-09-04 19:05:15 -04:00
stack.c
…
stat.c
fs: Provide __inode_get_bytes()
2017-08-17 22:06:03 +02:00
statfs.c
Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-07-08 10:50:54 -07:00
super.c
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:54:01 -07:00
sync.c
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2017-09-14 18:54:01 -07:00
timerfd.c
timerfd: Use get_itimerspec64() and put_itimerspec64()
2017-06-30 04:14:38 -04:00
userfaultfd.c
userfaultfd: non-cooperative: fix fork use after free
2017-10-03 17:54:25 -07:00
utimes.c
utimes: Make utimes y2038 safe
2017-09-03 20:24:30 -04:00
xattr.c
lsm: fix smack_inode_removexattr and xattr_getsecurity memleak
2017-10-04 18:03:15 +11:00