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2008-10-16sysctl: simplify ->strategyAlexey Dobriyan
name and nlen parameters passed to ->strategy hook are unused, remove them. In general ->strategy hook should know what it's doing, and don't do something tricky for which, say, pointer to original userspace array may be needed (name). Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: David S. Miller <davem@davemloft.net> [ networking bits ] Cc: Ralf Baechle <ralf@linux-mips.org> Cc: David Howells <dhowells@redhat.com> Cc: Matt Mackall <mpm@selenic.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16proc: move sysrq-trigger out of fs/proc/Alexey Dobriyan
Move it into sysrq.c, along with the rest of the sysrq implementation. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16block: sanitize invalid partition table entriesKay Sievers
We currently follow blindly what the partition table lies about the disk, and let the kernel create block devices which can not be accessed. Trying to identify the device leads to kernel logs full of: sdb: rw=0, want=73392, limit=28800 attempt to access beyond end of device Here is an example of a broken partition table, where sda2 starts behind the end of the disk, and sdb3 is larger than the entire disk: Disk /dev/sdb: 14 MB, 14745600 bytes 1 heads, 29 sectors/track, 993 cylinders, total 28800 sectors Device Boot Start End Blocks Id System /dev/sdb1 29 7800 3886 83 Linux /dev/sdb2 37801 45601 3900+ 83 Linux /dev/sdb3 15602 73402 28900+ 83 Linux /dev/sdb4 23403 28796 2697 83 Linux The kernel creates these completely invalid devices, which can not be accessed, or may lead to other unpredictable failures: grep . /sys/class/block/sdb*/{start,size} /sys/class/block/sdb/size:28800 /sys/class/block/sdb1/start:29 /sys/class/block/sdb1/size:7772 /sys/class/block/sdb2/start:37801 /sys/class/block/sdb2/size:7801 /sys/class/block/sdb3/start:15602 /sys/class/block/sdb3/size:57801 /sys/class/block/sdb4/start:23403 /sys/class/block/sdb4/size:5394 With this patch, we ignore partitions which start behind the end of the disk, and limit partitions to the end of the disk if they pretend to be larger: grep . /sys/class/block/sdb*/{start,size} /sys/class/block/sdb/size:28800 /sys/class/block/sdb1/start:29 /sys/class/block/sdb1/size:7772 /sys/class/block/sdb3/start:15602 /sys/class/block/sdb3/size:13198 /sys/class/block/sdb4/start:23403 /sys/class/block/sdb4/size:5394 These warnings are printed to the kernel log: sdb: p2 ignored, start 37801 is behind the end of the disk sdb: p3 size 57801 limited to end of disk Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Cc: Herton Ronaldo Krzesinski <herton@mandriva.com.br> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16fs/partitions/acorn.c: remove dead codeAdrian Bunk
I missed this when I did the arm26 removal. Reported-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16firmware: use dev_printk when possibleBjorn Helgaas
Convert printks to use dev_printk(). Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16char: moxa.c sparse annotationHarvey Harrison
The only use is to pass this to le16_to_cpu, declare as such drivers/char/moxa.c:548:11: warning: cast to restricted __le16. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Jiri Slaby <jirislaby@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16applicom.c: fix apparently-broken code in do_ac_read()Andrew Morton
The code scriblles over a local pointer whereas it appears to be trying to write to the memory at which that pointer points. Addresses http://bugzilla.kernel.org/show_bug.cgi?id=11397 Nobody we know can test this change. Reported-by: Zvonimir Rakamaric <zrakamar@cs.ubc.ca> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Jiri Slaby <jirislaby@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16Char: ds1286, eliminate busy waitingJiri Slaby
ds1286_get_time(); is not called from atomic context, sleep for 20 ms is better choice than a (home-made) busy waiting for such a situation. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16COMPAT_BINFMT_ELF definition tweakAlexey Dobriyan
Don't repeat BINFMT_ELF definition, simply multiply COMPAT and BINFMT_ELF. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16binfmt_elf_fdpic: wire up AT_EXECFD, AT_EXECFN, AT_SECUREPaul Mundt
These auxvec entries are the only ones left unhandled out of the current base implementation. This syncs up binfmt_elf_fdpic with linux/auxvec.h and current binfmt_elf. Signed-off-by: Paul Mundt <lethal@linux-sh.org> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16binfmt_elf_fdpic: convert initial stack alignment to arch_align_stack()Paul Mundt
binfmt_elf_fdpic seems to have grabbed a hard-coded hack from an ancient version of binfmt_elf in order to try and fix up initial stack alignment on multi-threaded x86, which while in addition to being unused, was also pushed down beyond the first set of operations on the stack pointer, negating the entire purpose. These days, we have an architecture independent arch_align_stack(), so we switch to using that instead. Move the initial alignment up before the initial stores while we're at it. Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16binfmt_elf_fdpic: support auxvec base platform stringPaul Mundt
Commit 483fad1c3fa1060d7e6710e84a065ad514571739 ("ELF loader support for auxvec base platform string") introduced AT_BASE_PLATFORM, but only implemented it for binfmt_elf. Given that AT_VECTOR_SIZE_BASE is unconditionally enlarged for us, and it's only optionally added in for the platforms that set ELF_BASE_PLATFORM, wire it up for binfmt_elf_fdpic, too. Signed-off-by: Paul Mundt <lethal@linux-sh.org> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16docbook: update procfs creditsRandy Dunlap
Update Erik Mouw's email address & affiliation in DocBook. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Erik Mouw <mouw@nl.linux.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16quota: remove CVS keywordsAdrian Bunk
Remove CVS keywords that weren't updated for a long time from comments. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Jan Kara <jack@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16fs/reiserfs: use an IS_ERR test rather than a NULL testJulien Brunel
In case of error, the function open_xa_dir returns an ERR pointer, but never returns a NULL pointer. So a NULL test that comes after an IS_ERR test should be deleted. The semantic match that finds this problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @match_bad_null_test@ expression x, E; statement S1,S2; @@ x = open_xa_dir(...) ... when != x = E ( * if (x == NULL && ...) S1 else S2 | * if (x == NULL || ...) S1 else S2 ) // </smpl> Signed-off-by: Julien Brunel <brunel@diku.dk> Signed-off-by: Julia Lawall <julia@diku.dk> Cc: Jeff Mahoney <jeffm@suse.com> Cc: Jan Kara <jack@ucw.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16reiserfs/procfs.c: remove CVS keywordsAdrian Bunk
Remove CVS keywords that weren't updated for a long time from comments. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16hfs: fix namelength memory corruptionEric Sesterhenn
Fix a stack corruption caused by a corrupted hfs filesystem. If the catalog name length is corrupted the memcpy overwrites the catalog btree structure. Since the field is limited to HFS_NAMELEN bytes in the structure and the file format, we throw an error if it is too long. Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16hfsplus: check read_mapping_page() return valueEric Sesterhenn
While testing more corrupted images with hfsplus, i came across one which triggered the following bug: [15840.675016] BUG: unable to handle kernel paging request at fffffffb [15840.675016] IP: [<c0116a4f>] kmap+0x15/0x56 [15840.675016] *pde = 00008067 *pte = 00000000 [15840.675016] Oops: 0000 [#1] PREEMPT DEBUG_PAGEALLOC [15840.675016] Modules linked in: [15840.675016] [15840.675016] Pid: 11575, comm: ln Not tainted (2.6.27-rc4-00123-gd3ee1b4-dirty #29) [15840.675016] EIP: 0060:[<c0116a4f>] EFLAGS: 00010202 CPU: 0 [15840.675016] EIP is at kmap+0x15/0x56 [15840.675016] EAX: 00000246 EBX: fffffffb ECX: 00000000 EDX: cab919c0 [15840.675016] ESI: 000007dd EDI: cab0bcf4 EBP: cab0bc98 ESP: cab0bc94 [15840.675016] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 [15840.675016] Process ln (pid: 11575, ti=cab0b000 task=cab919c0 task.ti=cab0b000) [15840.675016] Stack: 00000000 cab0bcdc c0231cfb 00000000 cab0bce0 00000800 ca9290c0 fffffffb [15840.675016] cab145d0 cab919c0 cab15998 22222222 22222222 22222222 00000001 cab15960 [15840.675016] 000007dd cab0bcf4 cab0bd04 c022cb3a cab0bcf4 cab15a6c ca9290c0 00000000 [15840.675016] Call Trace: [15840.675016] [<c0231cfb>] ? hfsplus_block_allocate+0x6f/0x2d3 [15840.675016] [<c022cb3a>] ? hfsplus_file_extend+0xc4/0x1db [15840.675016] [<c022ce41>] ? hfsplus_get_block+0x8c/0x19d [15840.675016] [<c06adde4>] ? sub_preempt_count+0x9d/0xab [15840.675016] [<c019ece6>] ? __block_prepare_write+0x147/0x311 [15840.675016] [<c0161934>] ? __grab_cache_page+0x52/0x73 [15840.675016] [<c019ef4f>] ? block_write_begin+0x79/0xd5 [15840.675016] [<c022cdb5>] ? hfsplus_get_block+0x0/0x19d [15840.675016] [<c019f22a>] ? cont_write_begin+0x27f/0x2af [15840.675016] [<c022cdb5>] ? hfsplus_get_block+0x0/0x19d [15840.675016] [<c0139ebe>] ? tick_program_event+0x28/0x4c [15840.675016] [<c013bd35>] ? trace_hardirqs_off+0xb/0xd [15840.675016] [<c022b723>] ? hfsplus_write_begin+0x2d/0x32 [15840.675016] [<c022cdb5>] ? hfsplus_get_block+0x0/0x19d [15840.675016] [<c0161988>] ? pagecache_write_begin+0x33/0x107 [15840.675016] [<c01879e5>] ? __page_symlink+0x3c/0xae [15840.675016] [<c019ad34>] ? __mark_inode_dirty+0x12f/0x137 [15840.675016] [<c0187a70>] ? page_symlink+0x19/0x1e [15840.675016] [<c022e6eb>] ? hfsplus_symlink+0x41/0xa6 [15840.675016] [<c01886a9>] ? vfs_symlink+0x99/0x101 [15840.675016] [<c018a2f6>] ? sys_symlinkat+0x6b/0xad [15840.675016] [<c018a348>] ? sys_symlink+0x10/0x12 [15840.675016] [<c01038bd>] ? sysenter_do_call+0x12/0x31 [15840.675016] ======================= [15840.675016] Code: 00 00 75 10 83 3d 88 2f ec c0 02 75 07 89 d0 e8 12 56 05 00 5d c3 55 ba 06 00 00 00 89 e5 53 89 c3 b8 3d eb 7e c0 e8 16 74 00 00 <8b> 03 c1 e8 1e 69 c0 d8 02 00 00 05 b8 69 8e c0 2b 80 c4 02 00 [15840.675016] EIP: [<c0116a4f>] kmap+0x15/0x56 SS:ESP 0068:cab0bc94 [15840.675016] ---[ end trace 4fea40dad6b70e5f ]--- This happens because the return value of read_mapping_page() is passed on to kmap unchecked. The bug is triggered after the first read_mapping_page() in hfsplus_block_allocate(), this patch fixes all three usages in this functions but leaves the ones further down in the file unchanged. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16hfsplus: fix Buffer overflow with a corrupted imageEric Sesterhenn
When an hfsplus image gets corrupted it might happen that the catalog namelength field gets b0rked. If we mount such an image the memcpy() in hfsplus_cat_build_key_uni() writes more than the 255 that fit in the name field. Depending on the size of the overwritten data, we either only get memory corruption or also trigger an oops like this: [ 221.628020] BUG: unable to handle kernel paging request at c82b0000 [ 221.629066] IP: [<c022d4b1>] hfsplus_find_cat+0x10d/0x151 [ 221.629066] *pde = 0ea29163 *pte = 082b0160 [ 221.629066] Oops: 0002 [#1] PREEMPT DEBUG_PAGEALLOC [ 221.629066] Modules linked in: [ 221.629066] [ 221.629066] Pid: 4845, comm: mount Not tainted (2.6.27-rc4-00123-gd3ee1b4-dirty #28) [ 221.629066] EIP: 0060:[<c022d4b1>] EFLAGS: 00010206 CPU: 0 [ 221.629066] EIP is at hfsplus_find_cat+0x10d/0x151 [ 221.629066] EAX: 00000029 EBX: 00016210 ECX: 000042c2 EDX: 00000002 [ 221.629066] ESI: c82d70ca EDI: c82b0000 EBP: c82d1bcc ESP: c82d199c [ 221.629066] DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068 [ 221.629066] Process mount (pid: 4845, ti=c82d1000 task=c8224060 task.ti=c82d1000) [ 221.629066] Stack: c080b3c4 c82aa8f8 c82d19c2 00016210 c080b3be c82d1bd4 c82aa8f0 00000300 [ 221.629066] 01000000 750008b1 74006e00 74006900 65006c00 c82d6400 c013bd35 c8224060 [ 221.629066] 00000036 00000046 c82d19f0 00000082 c8224548 c8224060 00000036 c0d653cc [ 221.629066] Call Trace: [ 221.629066] [<c013bd35>] ? trace_hardirqs_off+0xb/0xd [ 221.629066] [<c013bca3>] ? trace_hardirqs_off_caller+0x14/0x9b [ 221.629066] [<c013bd35>] ? trace_hardirqs_off+0xb/0xd [ 221.629066] [<c013bca3>] ? trace_hardirqs_off_caller+0x14/0x9b [ 221.629066] [<c013bd35>] ? trace_hardirqs_off+0xb/0xd [ 221.629066] [<c0107aa3>] ? native_sched_clock+0x82/0x96 [ 221.629066] [<c01302d2>] ? __kernel_text_address+0x1b/0x27 [ 221.629066] [<c010487a>] ? dump_trace+0xca/0xd6 [ 221.629066] [<c0109e32>] ? save_stack_address+0x0/0x2c [ 221.629066] [<c0109eaf>] ? save_stack_trace+0x1c/0x3a [ 221.629066] [<c013b571>] ? save_trace+0x37/0x8d [ 221.629066] [<c013b62e>] ? add_lock_to_list+0x67/0x8d [ 221.629066] [<c013ea1c>] ? validate_chain+0x8a4/0x9f4 [ 221.629066] [<c013553d>] ? down+0xc/0x2f [ 221.629066] [<c013f1f6>] ? __lock_acquire+0x68a/0x6e0 [ 221.629066] [<c013bd35>] ? trace_hardirqs_off+0xb/0xd [ 221.629066] [<c013bca3>] ? trace_hardirqs_off_caller+0x14/0x9b [ 221.629066] [<c013bd35>] ? trace_hardirqs_off+0xb/0xd [ 221.629066] [<c0107aa3>] ? native_sched_clock+0x82/0x96 [ 221.629066] [<c013da5d>] ? mark_held_locks+0x43/0x5a [ 221.629066] [<c013dc3a>] ? trace_hardirqs_on+0xb/0xd [ 221.629066] [<c013dbf4>] ? trace_hardirqs_on_caller+0xf4/0x12f [ 221.629066] [<c06abec8>] ? _spin_unlock_irqrestore+0x42/0x58 [ 221.629066] [<c013555c>] ? down+0x2b/0x2f [ 221.629066] [<c022aa68>] ? hfsplus_iget+0xa0/0x154 [ 221.629066] [<c022b0b9>] ? hfsplus_fill_super+0x280/0x447 [ 221.629066] [<c0107aa3>] ? native_sched_clock+0x82/0x96 [ 221.629066] [<c013bca3>] ? trace_hardirqs_off_caller+0x14/0x9b [ 221.629066] [<c013bca3>] ? trace_hardirqs_off_caller+0x14/0x9b [ 221.629066] [<c013f1f6>] ? __lock_acquire+0x68a/0x6e0 [ 221.629066] [<c041c9e4>] ? string+0x2b/0x74 [ 221.629066] [<c041cd16>] ? vsnprintf+0x2e9/0x512 [ 221.629066] [<c010487a>] ? dump_trace+0xca/0xd6 [ 221.629066] [<c0109eaf>] ? save_stack_trace+0x1c/0x3a [ 221.629066] [<c0109eaf>] ? save_stack_trace+0x1c/0x3a [ 221.629066] [<c013b571>] ? save_trace+0x37/0x8d [ 221.629066] [<c013b62e>] ? add_lock_to_list+0x67/0x8d [ 221.629066] [<c013ea1c>] ? validate_chain+0x8a4/0x9f4 [ 221.629066] [<c01354d3>] ? up+0xc/0x2f [ 221.629066] [<c013f1f6>] ? __lock_acquire+0x68a/0x6e0 [ 221.629066] [<c013bd35>] ? trace_hardirqs_off+0xb/0xd [ 221.629066] [<c013bca3>] ? trace_hardirqs_off_caller+0x14/0x9b [ 221.629066] [<c013bd35>] ? trace_hardirqs_off+0xb/0xd [ 221.629066] [<c0107aa3>] ? native_sched_clock+0x82/0x96 [ 221.629066] [<c041cfb7>] ? snprintf+0x1b/0x1d [ 221.629066] [<c01ba466>] ? disk_name+0x25/0x67 [ 221.629066] [<c0183960>] ? get_sb_bdev+0xcd/0x10b [ 221.629066] [<c016ad92>] ? kstrdup+0x2a/0x4c [ 221.629066] [<c022a7b3>] ? hfsplus_get_sb+0x13/0x15 [ 221.629066] [<c022ae39>] ? hfsplus_fill_super+0x0/0x447 [ 221.629066] [<c0183583>] ? vfs_kern_mount+0x3b/0x76 [ 221.629066] [<c0183602>] ? do_kern_mount+0x32/0xba [ 221.629066] [<c01960d4>] ? do_new_mount+0x46/0x74 [ 221.629066] [<c0196277>] ? do_mount+0x175/0x193 [ 221.629066] [<c013dbf4>] ? trace_hardirqs_on_caller+0xf4/0x12f [ 221.629066] [<c01663b2>] ? __get_free_pages+0x1e/0x24 [ 221.629066] [<c06ac07b>] ? lock_kernel+0x19/0x8c [ 221.629066] [<c01962e6>] ? sys_mount+0x51/0x9b [ 221.629066] [<c01962f9>] ? sys_mount+0x64/0x9b [ 221.629066] [<c01038bd>] ? sysenter_do_call+0x12/0x31 [ 221.629066] ======================= [ 221.629066] Code: 89 c2 c1 e2 08 c1 e8 08 09 c2 8b 85 e8 fd ff ff 66 89 50 06 89 c7 53 83 c7 08 56 57 68 c4 b3 80 c0 e8 8c 5c ef ff 89 d9 c1 e9 02 <f3> a5 89 d9 83 e1 03 74 02 f3 a4 83 c3 06 8b 95 e8 fd ff ff 0f [ 221.629066] EIP: [<c022d4b1>] hfsplus_find_cat+0x10d/0x151 SS:ESP 0068:c82d199c [ 221.629066] ---[ end trace e417a1d67f0d0066 ]--- Since hfsplus_cat_build_key_uni() returns void and only has one callsite, the check is performed at the callsite. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16hfsplus: quieten down mounting hfsplus journaled fs read onlyMike Crowe
Check whether the file system was to be mounted read only anyway before warning about changing the mount to read only. Signed-off-by: Mike Crowe <mac@mcrowe.com> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16befs: annotate fs32 on tests for superblock endiannessHarvey Harrison
Does compile-time byteswapping rather than runtime. Noticed by sparse: fs/befs/super.c:29:6: warning: cast to restricted __le32 fs/befs/super.c:29:6: warning: cast from restricted fs32 fs/befs/super.c:31:11: warning: cast to restricted __be32 fs/befs/super.c:31:11: warning: cast from restricted fs32 fs/befs/super.c:31:11: warning: cast to restricted __be32 fs/befs/super.c:31:11: warning: cast from restricted fs32 fs/befs/super.c:31:11: warning: cast to restricted __be32 fs/befs/super.c:31:11: warning: cast from restricted fs32 fs/befs/super.c:31:11: warning: cast to restricted __be32 fs/befs/super.c:31:11: warning: cast from restricted fs32 fs/befs/super.c:31:11: warning: cast to restricted __be32 fs/befs/super.c:31:11: warning: cast from restricted fs32 fs/befs/super.c:31:11: warning: cast to restricted __be32 fs/befs/super.c:31:11: warning: cast from restricted fs32 fs/befs/linuxvfs.c:811:7: warning: cast to restricted __le32 fs/befs/linuxvfs.c:811:7: warning: cast from restricted fs32 fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32 fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32 fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32 fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32 fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32 fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32 fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32 fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32 fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32 fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32 fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32 fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32 Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: "Sergey S. Kostyliov" <rathamahata@php4.ru> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16ext2: avoid printk floods in the face of directory corruptionEric Sandeen
A very large directory with many read failures (either due to storage problems, or due to invalid size & blocks from corruption) will generate a printk storm as the filesystem continues to try to read all the blocks. This flood of messages can tie up the box until it is complete - which may be a very long time, especially for very large corrupted values. This is fixed by only reporting the corruption once each time we try to read the directory. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Cc: Eugene Teo <eugeneteo@kernel.sg> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16ext2: fix ext2 block reservation early ENOSPC issueMingming Cao
We could run into ENOSPC error on ext2, even when there is free blocks on the filesystem. The problem is triggered in the case the goal block group has 0 free blocks , and the rest block groups are skipped due to the check of "free_blocks < windowsz/2". Current code could fall back to non reservation allocation to prevent early ENOSPC after examing all the block groups with reservation on , but this code was bypassed if the reservation window is turned off already, which is true in this case. This patch fixed two issues: 1) We don't need to turn off block reservation if the goal block group has 0 free blocks left and continue search for the rest of block groups. Current code the intention is to turn off the block reservation if the goal allocation group has a few (some) free blocks left (not enough for make the desired reservation window),to try to allocation in the goal block group, to get better locality. But if the goal blocks have 0 free blocks, it should leave the block reservation on, and continues search for the next block groups,rather than turn off block reservation completely. 2) we don't need to check the window size if the block reservation is off. The problem was originally found and fixed in ext4. Signed-off-by: Mingming Cao <cmm@us.ibm.com> Cc: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16telephony: remove CVS keywordsAdrian Bunk
Remove CVS keywords that weren't updated for a long time from comments. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16pnp: make the resource type an unsigned longRene Herman
PnP encodes the resource type directly as its struct resource->flags value which is an unsigned long. Make it so... Signed-off-by: Rene Herman <rene.herman@gmail.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Cc: Andi Kleen <andi@firstfloor.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16pnp: remove printk() with outdated versionAdrian Bunk
There's no point in printing some ancient version number forever. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Rene Herman <rene.herman@gmail.com> Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Acked-by: Adam M Belay <abelay@MIT.EDU> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16fbcon_set_all_vcs: fix kernel crash when switching the rotated consolesOleg Nesterov
echo 3 >> /sys/class/graphics/fbcon/rotate_all, then switch to another console. Result: BUG: unable to handle kernel paging request at ffffc20005d00000 IP: [bitfill_aligned+149/265] bitfill_aligned+0x95/0x109 PGD 7e228067 PUD 7e229067 PMD 7bc1f067 PTE 0 Oops: 0002 [1] SMP CPU 1 Modules linked in: [...a lot...] Pid: 10, comm: events/1 Not tainted 2.6.26.5-45.fc9.x86_64 #1 RIP: 0010:[bitfill_aligned+149/265] [bitfill_aligned+149/265] bitfill_aligned+0x95/0x109 RSP: 0018:ffff81007d811bc8 EFLAGS: 00010216 RAX: ffffc20005d00000 RBX: 0000000000000000 RCX: 0000000000000400 RDX: 0000000000000000 RSI: ffffc20005d00000 RDI: ffffffffffffffff RBP: ffff81007d811be0 R08: 0000000000000400 R09: 0000000000000040 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000010000 R13: ffffffff811632f0 R14: 0000000000000006 R15: ffff81007cb85400 FS: 0000000000000000(0000) GS:ffff81007e004780(0000) knlGS:0000000000000000 CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b CR2: ffffc20005d00000 CR3: 0000000000201000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process events/1 (pid: 10, threadinfo ffff81007d810000, task ffff81007d808000) Stack: ffff81007c9d75a0 0000000000000000 0000000000000000 ffff81007d811c80 ffffffff81163a61 ffff810000000000 ffffffff8115f9c8 0000001000000000 0000000100aaaaaa 000000007cd0d4a0 fffffd8a00000800 0001000000000000 Call Trace: [cfb_fillrect+523/798] cfb_fillrect+0x20b/0x31e [soft_cursor+416/436] ? soft_cursor+0x1a0/0x1b4 [ccw_clear_margins+205/263] ccw_clear_margins+0xcd/0x107 [fbcon_clear_margins+59/61] fbcon_clear_margins+0x3b/0x3d [fbcon_switch+1291/1466] fbcon_switch+0x50b/0x5ba [redraw_screen+261/481] redraw_screen+0x105/0x1e1 [ccw_cursor+0/1869] ? ccw_cursor+0x0/0x74d [complete_change_console+48/190] complete_change_console+0x30/0xbe [change_console+115/120] change_console+0x73/0x78 [console_callback+0/292] ? console_callback+0x0/0x124 [console_callback+97/292] console_callback+0x61/0x124 [schedule_delayed_work+25/30] ? schedule_delayed_work+0x19/0x1e [run_workqueue+139/282] run_workqueue+0x8b/0x11a [worker_thread+221/238] worker_thread+0xdd/0xee [autoremove_wake_function+0/56] ? autoremove_wake_function+0x0/0x38 [worker_thread+0/238] ? worker_thread+0x0/0xee [kthread+73/118] kthread+0x49/0x76 [child_rip+10/18] child_rip+0xa/0x12 [kthread+0/118] ? kthread+0x0/0x76 [child_rip+0/18] ? child_rip+0x0/0x12 Because fbcon_set_all_vcs()->FBCON_SWAP() uses display->rotate == 0 instead of fbcon_ops->rotate, and vc_resize() has no effect because it is called with new_cols/rows == ->vc_cols/rows. Tested on 2.6.26.5-45.fc9.x86_64, but http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git seems to have the same problem. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: <stable@kernel.org> [2.6.27.x, 2.6.26.x, maybe 2.6.25.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16fbdev: add new TMIO framebuffer driverDmitry Baryshkov
Add driver for TMIO framebuffer cells as found e.g. in Toshiba TC6393XB chips. Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com> Cc: Ian Molton <spyro@f2s.com> Acked-by: Samuel Ortiz <sameo@openedhand.com> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16fbdev: Epson S1D1 framebuffer maintainerKristoffer Ericson
I'm stepping up as maintainer for the Epson S1D13XXXFB driver since I have 2 platforms currently using it. Signed-off-by: Kristoffer Ericson <Kristoffer.Ericson@gmail.com> Acked-by: Thibaut Varene <varenet@parisc-linux.org> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16framebuffer: fix carminefb section mismatchRandy Dunlap
Make alloc_carmine_fb() __devinit. WARNING: drivers/video/carminefb.o(.text+0x81b): Section mismatch in reference from the function alloc_carmine_fb() to the variable .devinit.data:carminefb_fix The function alloc_carmine_fb() references the variable __devinitdata carminefb_fix. This is often because alloc_carmine_fb lacks a __devinitdata annotation or the annotation of carminefb_fix is wrong. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Sebastian Siewior <bigeasy@linutronix.de> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16matroxfb: support G200eV chipDarrick J. Wong
Support the Matrox G200eV chip, based on timings that I found in the X.org matrox driver. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Cc: Petr Vandrovec <vandrove@vc.cvut.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16fbdev: allow more chip revisions in Epson s1d13... video driverKristoffer Ericson
The Epson s1d13xxx hardware is common in many handhelds, but our driver is currently locked to a single chip revision. This patch adds an array of known to work revisions (which can be extended). [akpm@linux-foundation.org: cleanups] Signed-off-by: Kristoffer Ericson <Kristoffer.Ericson@gmail.com> Acked-by: Thibaut Varène <varenet@parisc-linux.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16fbdev: ignore VESA modes if framebuffer does not support themMichal Januszewski
Currently, it is possible to set a graphics VESA mode at boot time via the vga= parameter even when no framebuffer driver supporting this is configured. This could lead to the system booting with a black screen, without a usable console. Fix this problem by only allowing to set graphics modes at boot time if a supporting framebuffer driver is configured. Signed-off-by: Michal Januszewski <spock@gentoo.org> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16vgacon: vgacon_scrolldelta simplificationMarcin Slusarz
There's no point in checking diff == c->vc_rows, because it can be true only when count == 0, but we already checked that. Additionally move variables used only in one block to this block. Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Cc: Antonino Daplas <adaplas@gmail.com> Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16vgacon: optimize scrollingMarcin Slusarz
Join multiple scr_memcpyw into 1-3 calls (usually 2). (benchmarked average speedup: 1%) Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16fbmon: fix EDID parser to detect interlace modesJon Dufresne
The current EDID parser in the linux kernel ignores interlace modes. The patch looks for the edid interlace flag and adjusts the vertical resolution if it is found. Signed-off-by: Jon Dufresne <jon.dufresne@gmail.com> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16MAINTAINERS: add entry for uvesafbMichal Januszewski
Add a maintainer entry for the uvesafb driver. Signed-off-by: Michal Januszewski <spock@gentoo.org> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16uvesafb: don't treat mode info retrieval failures as errorsMichal Januszewski
Some BIOSes return error codes when queried for information about modes from their own modelist. uvesafb treats this as an error case and bails out. Change this behavior so that broken modes do not prevent the driver from working. Only the failure to retrieve information about any usable video mode is considered to be an error case. Signed-off-by: Michal Januszewski <spock@gentoo.org> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16uvesafb: document mode to mode_option parameter changeMike Pagano
Document the change from the old "mode" parameter to the "mode_option" parameter. Signed-off-by: Mike Pagano <mpagano@gentoo.org> Cc: Krzysztof Halasa <khc@pm.waw.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16radeonfb: accelerate imageblit and other improvementsBenjamin Herrenschmidt
Implement support for HW color expansion of 1bpp images, along with some improvements to the FIFO handling and other accel operations. The offset fixup code is now unnecessary as the fbcon core will call our set_par upon switch back from KD_GRAPHICS before anything else happens. I removed it as it would slow down accel operations. The fifo wait has been improved to avoid hitting the HW register as often, and the various accel ops are now performing better caching of register values. Overall, this improve accel performances. The imageblit acceleration does result in a small overall regression in performances on some machines (on the order of 5% on some x86), probably becaus the SW path provides a better bus utilisation, but I decided to ingnore that as the performances is still very good, and on the other hand, some machines such as some sparc64 get a 3 fold performance improvement. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: David S. Miller <davem@davemloft.net> Cc: Krzysztof Halasa <khc@pm.waw.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16radeonfb: misc cleanup of engine and dst cache handlingBenjamin Herrenschmidt
Fix a couple of incomplete tests of the chip families in the engine init/reset code and proper initialization of the destination cache mode. The result should better match what the latest X radeon driver does. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: David S. Miller <davem@davemloft.net> Cc: Krzysztof Halasa <khc@pm.waw.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16efifb/imacfb consolidation + hardware supportPeter Jones
Remove imacfb entirely, merging its DMI table into the (otherwise very similar) efifb driver. This also adds hardware support for many of the newer Intel Apple hardware. This has been fairly well tested; we've been shipping it in Fedora for some time. Signed-off-by: Peter Jones <pjones@redhat.com> Cc: Krzysztof Helt <krzysztof.h1@poczta.fm> Cc: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Cc: Jaya Kumar <jayakumar.lkml@gmail.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Maciej W. Rozycki <macro@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16atmel_lcdfb: disallow setting larger resolution than the framebuffer memory ↵Stanislaw Gruszka
can handle Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Krzysztof Helt <krzysztof.h1@wp.pl> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16cirrusfb: do not change MCLK for Alpine chipsKrzysztof Helt
A memory clock value (MCLK) is changed to a minimum required by a current mode bandwidth. This usually lowers the MCLK to its minimum (50 MHz) thus decreasing the card performance. Just leave the MCLK value set by card BIOS. The CL-GD5446 Technical Reference Manual point 9.9.1.3 states that if a pixclock value is close (~1%) to the MCLK or MCLK/2 this may result in a jitter on the screen. A countermeasure is to use the MCLK as pixclock source instead of a VCLK. The patch implements this as well. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16cirrusfb: fix 16bpp modesKrzysztof Helt
The 16bpp mode did not work on the Cirrus cards as the visual type was set to DIRECTCOLOR instead of TRUECOLOR. The Alpine family used one incorrect register setting so this 16bpp modes generated wrong horizontal frequency. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16cirrusfb: add noaccel module parameterKrzysztof Helt
The noaccel parameter is already handled if the driver is not built as module. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16cirrusfb: drop clock fields from cirrusfb_regs structureKrzysztof Helt
Move call to pixclock calculation into the cirrusfb_set_par_foo(). It makes copy of clock registers redundant. Simplify clock calculations further. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16cirrusfb: eliminate CRT registers from global structureKrzysztof Helt
Move calculations of CRT register values into the cirrusfb_set_par_foo() where the values are used. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16cirrusfb: add __devinit attribute to probing functionsKrzysztof Helt
Add __devinit attribute to probing functions. This fixed section mismatch warning from my previous patch. Kill one redundant forward declaration. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16cirrusfb: use modedb and add mode_option parameterKrzysztof Helt
Use modedb for initial mode instead of table of few predefined modes. Add mode_option module parameter as a step toward unification of frame buffers' parameters. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-03 08:57:51 +0000