kernel/linux.git/fs/adfs/map.c, branch v6.12.80Linux kernel stable tree (mirror)https://git.radix-linux.su/kernel/linux.git/atom?h=v6.12.802024-10-02T21:23:23+00:00move asm/unaligned.h to linux/unaligned.h2024-10-02T21:23:23+00:00Al Viroviro@zeniv.linux.org.uk2024-10-01T19:35:57+00:00urn:sha1:5f60d5f6bbc12e782fac78110b0ee62698f3b576
asm/unaligned.h is always an include of asm-generic/unaligned.h;
might as well move that thing to linux/unaligned.h and include
that - there's nothing arch-specific in that header.
auto-generated by the following:
for i in `git grep -l -w asm/unaligned.h`; do
sed -i -e "s/asm\/unaligned.h/linux\/unaligned.h/" $i
done
for i in `git grep -l -w asm-generic/unaligned.h`; do
sed -i -e "s/asm-generic\/unaligned.h/linux\/unaligned.h/" $i
done
git mv include/asm-generic/unaligned.h include/linux/unaligned.h
git mv tools/include/asm-generic/unaligned.h tools/include/linux/unaligned.h
sed -i -e "/unaligned.h/d" include/asm-generic/Kbuild
sed -i -e "s/__ASM_GENERIC/__LINUX/" include/linux/unaligned.h tools/include/linux/unaligned.h
fs/adfs: map: fix map scanning2020-01-21T01:12:40+00:00Russell Kingrmk+kernel@armlinux.org.uk2019-12-09T11:09:04+00:00urn:sha1:f93793fd73a629f4c86b0d91fd84fe175705aff9
When scanning the map for a fragment id, we need to keep track of the
free space links, so we don't inadvertently believe that the freespace
link is a valid fragment id.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
fs/adfs: map: move map-specific sb initialisation to map.c2020-01-21T01:12:40+00:00Russell Kingrmk+kernel@armlinux.org.uk2019-12-09T11:08:59+00:00urn:sha1:f6f14a0d71b0773a1d4147d1a3c33d537cd213ab
Move map specific superblock initialisation to map.c, rather than
having it spread into super.c.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
fs/adfs: map: use find_next_bit_le() rather than open coding it2020-01-21T01:12:40+00:00Russell Kingrmk+kernel@armlinux.org.uk2019-12-09T11:08:54+00:00urn:sha1:792314f8b223f77037b85e6242c67df15623cf75
Use find_next_bit_le() to find the end of a fragment in the map rather
than open-coding this functionality.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
fs/adfs: map: incorporate map offsets into layout2020-01-21T01:12:40+00:00Russell Kingrmk+kernel@armlinux.org.uk2019-12-09T11:08:49+00:00urn:sha1:197ba3c519312a0bed91aeaf34095b2c09c6431a
lookup_zone() and scan_free_map() cope in different ways with the
location of the map data within a zone:
1. lookup_zone() adds a four byte offset to the map data pointer to
skip over the check and free link bytes.
2. scan_free_map() needs to use the free link pointer, which is an
offset from itself, so we end up adding a 32-bit offset to the
end pointer (aka mapsize) which is really confusing.
Rename mapsize to endbit as this is really what it is, and incorporate
the 32-bit offset into the map layout. This means that both dm_startbit
and dm_endbit are now bit offsets from the start of the buffer, rather
than four bytes in to the buffer.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
fs/adfs: map: factor out map cleanup2020-01-21T01:12:40+00:00Russell Kingrmk+kernel@armlinux.org.uk2019-12-09T11:08:44+00:00urn:sha1:7b1952676256d2cdc03d0415a4c0e6bfb64e00ff
We have several places which deal with releasing the map buffers and
freeing the map array. Provide a helper for this.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
fs/adfs: map: break up adfs_read_map()2020-01-21T01:12:40+00:00Russell Kingrmk+kernel@armlinux.org.uk2019-12-09T11:08:39+00:00urn:sha1:6092b6be304494e311b65935f5e09b510cbd57cc
Split up adfs_read_map() into separate helpers to layout the map,
read the map, and release the map buffers.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
fs/adfs: map: rename adfs_map_free() to adfs_map_statfs()2020-01-21T01:12:40+00:00Russell Kingrmk+kernel@armlinux.org.uk2019-12-09T11:08:34+00:00urn:sha1:e6160e469f56a23cb69e1dc37aa0d895bf29ac24
adfs_map_free() is not obvious whether it is freeing the map or
returning the number of free blocks on the filesystem. Rename it to
the more generic statfs() to make it clear that it's a statistic
function.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
fs/adfs: map: move map reading and validation to map.c2020-01-21T01:12:40+00:00Russell Kingrmk+kernel@armlinux.org.uk2019-12-09T11:08:28+00:00urn:sha1:f75d398d6ee61b04c16124e3eddd786526bc7d40
Keep all the map code together in map.c, rather than having some in
super.c
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Merge branch 'work.adfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs2019-07-19T18:33:22+00:00Linus Torvaldstorvalds@linux-foundation.org2019-07-19T18:33:22+00:00urn:sha1:d2fbf4b6d585e40f2369675148777abce3abd0e7
Pull adfs updates from Al Viro:
"More ADFS patches from Russell King"
* 'work.adfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fs/adfs: add time stamp and file type helpers
fs/adfs: super: limit idlen according to directory type
fs/adfs: super: fix use-after-free bug
fs/adfs: super: safely update options on remount
fs/adfs: super: correct superblock flags
fs/adfs: clean up indirect disc addresses and fragment IDs
fs/adfs: clean up error message printing
fs/adfs: use %pV for error messages
fs/adfs: use format_version from disc_record
fs/adfs: add helper to get filesystem size
fs/adfs: add helper to get discrecord from map
fs/adfs: correct disc record structure