- 08 Feb, 2008 40 commits
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Andy Whitcroft authored
This version brings the remainder of the queued fixes. A number of fixes for items missed reported by Andrew Morton and others. Also a handful of new checks and fixes for false positives. Of note: - new warning associated with --file to try and avoid cleanup only patches, - corrected handling of completly empty files, - corrected report handling with multiple files, - handling of possible types in the face of multiple declarations, - detection of unnessary braces on complex if statements (where present), and - all new comment spacing handling. Andi Kleen (1): Introduce a warning when --file mode is used Andy Whitcroft (14): Version: 0.14 clean up some space violations in checkpatch.pl a completly empty file should not provoke a whinge reset report lines buffers between files unary ++/-- may abutt close braces __typeof__ is also unary comments: revamp comment handling add --summary-file option adding filename to summary line trailing backslashes are not trailing statements handle operators passed as parameters such as to ASSERTCMP possible types -- enhance debugging check for boolean operations with constants possible types: handle multiple declarations detect and report if statements where all branches are single statements Arjan van de Ven (1): quiet option should not print the summary on no errors Bartlomiej Zolnierkiewicz (1): warn about using __FUNCTION__ Timur Tabi (1): loosen spacing checks for __asm__ Signed-off-by:Andy Whitcroft <apw@shadowen.org> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Ralf Baechle authored
Use set_irq_noprobe() to mark all MIPS interrupts as non-probe. Override that default for i8259 interrupts. Signed-off-by:
Ralf Baechle <ralf@linux-mips.org> Acked-and-tested-by:
Rob Landley <rob@landley.net> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by:
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Ralf Baechle authored
Probing non-ISA interrupts using the handle_percpu_irq as their handle_irq method may crash the system because handle_percpu_irq does not check IRQ_WAITING. This for example hits the MIPS Qemu configuration. This patch provides two helper functions set_irq_noprobe and set_irq_probe to set rsp. clear the IRQ_NOPROBE flag. The only current caller is MIPS code but this really belongs into generic code. As an aside, interrupt probing these days has become a mostly obsolete if not dangerous art. I think Linux interrupts should be changed to default to non-probing but that's subject of this patch. Signed-off-by:
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Denis Cheng authored
There is an outdated comment in serial_core.c also fixed. Signed-off-by:
Denis Cheng <crquan@gmail.com> Signed-off-by:
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Patrick McHardy authored
Signed-off-by:
Patrick McHardy <kaber@trash.net> Acked-by:
Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Dipankar Sarma <dipankar@in.ibm.com> Signed-off-by:
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Jan Kara authored
There are two possible races in handling of private_list in buffer cache. 1) When fsync_buffers_list() processes a private_list, it clears b_assoc_mapping and moves buffer to its private list. Now drop_buffers() comes, sees a buffer is on list so it calls __remove_assoc_queue() which complains about b_assoc_mapping being cleared (as it cannot propagate possible IO error). This race has been actually observed in the wild. 2) When fsync_buffers_list() processes a private_list, mark_buffer_dirty_inode() can be called on bh which is already on the private list of fsync_buffers_list(). As buffer is on some list (note that the check is performed without private_lock), it is not readded to the mapping's private_list and after fsync_buffers_list() finishes, we have a dirty buffer which should be on private_list but it isn't. This race has not been reported, probably because most (but not all) callers of mark_buffer_dirty_inode() hold i_mutex and thus are serialized with fsync(). Fix these issues by not clearing b_assoc_map when fsync_buffers_list() moves buffer to a dedicated list and by reinserting buffer in private_list when it is found dirty after we have submitted buffer for IO. We also change the tests whether a buffer is on a private list from !list_empty(&bh->b_assoc_buffers) to bh->b_assoc_map so that they are single word reads and hence lockless checks are safe. Signed-off-by:
Jan Kara <jack@suse.cz> Cc: Nick Piggin <npiggin@suse.de> Signed-off-by:
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Yinghai Lu authored
So we can use them for the early console like console=uart8250 or earlycon=uart8250 or early_printk Signed-off-by:
Yinghai Lu <yinghai.lu@sun.com> Cc: Andi Kleen <ak@suse.de> Signed-off-by:
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Yi Yang authored
Currently, for every sysfs node, the callers will be responsible for implementing store operation, so many many callers are doing duplicate things to validate input, they have the same mistakes because they are calling simple_strtol/ul/ll/uul, especially for module params, they are just numeric, but you can echo such values as 0x1234xxx, 07777888 and 1234aaa, for these cases, module params store operation just ignores succesive invalid char and converts prefix part to a numeric although input is acctually invalid. This patch tries to fix the aforementioned issues and implements strict_strtox serial functions, kernel/params.c uses them to strictly validate input, so module params will reject such values as 0x1234xxxx and returns an error: write error: Invalid argument Any modules which export numeric sysfs node can use strict_strtox instead of simple_strtox to reject any invalid input. Here are some test results: Before applying this patch: [root@yangyi-dev /]# cat /sys/module/e1000/parameters/copybreak 4096 [root@yangyi-dev /]# echo 0x1000 > /sys/module/e1000/parameters/copybreak [root@yangyi-dev /]# cat /sys/module/e1000/parameters/copybreak 4096 [root@yangyi-dev /]# echo 0x1000g > /sys/module/e1000/parameters/copybreak [root@yangyi-dev /]# cat /sys/module/e1000/parameters/copybreak 4096 [root@yangyi-dev /]# echo 0x1000gggggggg > /sys/module/e1000/parameters/copybreak [root@yangyi-dev /]# cat /sys/module/e1000/parameters/copybreak 4096 [root@yangyi-dev /]# echo 010000 > /sys/module/e1000/parameters/copybreak [root@yangyi-dev /]# cat /sys/module/e1000/parameters/copybreak 4096 [root@yangyi-dev /]# echo 0100008 > /sys/module/e1000/parameters/copybreak [root@yangyi-dev /]# cat /sys/module/e1000/parameters/copybreak 4096 [root@yangyi-dev /]# echo 010000aaaaa > /sys/module/e1000/parameters/copybreak [root@yangyi-dev /]# cat /sys/module/e1000/parameters/copybreak 4096 [root@yangyi-dev /]# After applying this patch: [root@yangyi-dev /]# cat /sys/module/e1000/parameters/copybreak 4096 [root@yangyi-dev /]# echo 0x1000 > /sys/module/e1000/parameters/copybreak [root@yangyi-dev /]# cat /sys/module/e1000/parameters/copybreak 4096 [root@yangyi-dev /]# echo 0x1000g > /sys/module/e1000/parameters/copybreak -bash: echo: write error: Invalid argument [root@yangyi-dev /]# cat /sys/module/e1000/parameters/copybreak 4096 [root@yangyi-dev /]# echo 0x1000gggggggg > /sys/module/e1000/parameters/copybreak -bash: echo: write error: Invalid argument [root@yangyi-dev /]# echo 010000 > /sys/module/e1000/parameters/copybreak [root@yangyi-dev /]# echo 0100008 > /sys/module/e1000/parameters/copybreak -bash: echo: write error: Invalid argument [root@yangyi-dev /]# echo 010000aaaaa > /sys/module/e1000/parameters/copybreak -bash: echo: write error: Invalid argument [root@yangyi-dev /]# cat /sys/module/e1000/parameters/copybreak 4096 [root@yangyi-dev /]# echo -n 4096 > /sys/module/e1000/parameters/copybreak [root@yangyi-dev /]# cat /sys/module/e1000/parameters/copybreak 4096 [root@yangyi-dev /]# [akpm@linux-foundation.org: fix compiler warnings] [akpm@linux-foundation.org: fix off-by-one found by tiwai@suse.de] Signed-off-by:
Yi Yang <yi.y.yang@intel.com> Cc: Greg KH <greg@kroah.com> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Cc: Takashi Iwai <tiwai@suse.de> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by:
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Randy Dunlap authored
Fix gcc warnings in getdelays.c: Documentation/accounting/getdelays.c: In function 'task_context_switch_counts': Documentation/accounting/getdelays.c:214: warning: format '%15lu' expects type 'long unsigned int', but argument 4 has type '__u64' Documentation/accounting/getdelays.c:214: warning: format '%15lu' expects type 'long unsigned int', but argument 5 has type '__u64' Documentation/accounting/getdelays.c: In function 'main': Documentation/accounting/getdelays.c:402: warning: format '%d' expects type 'int', but argument 2 has type 'long unsigned int' Documentation/accounting/getdelays.c: In function 'get_family_id': Documentation/accounting/getdelays.c:171: warning: 'id' may be used uninitialized in this function One warning is not a problem and can be dismissed: Documentation/accounting/getdelays.c: In function 'main': Documentation/accounting/getdelays.c:236: warning: 'cmd_type' may be used uninitialized in this function Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> Acked-by:
Balbir Singh <balbir@linux.vnet.ibm.com> Signed-off-by:
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Sam Ravnborg authored
Fix following warning: WARNING: o-x86_64/kernel/built-in.o(.text+0x36d8b): Section mismatch in reference from the function enable_nonboot_cpus() to the function .cpuinit.text:_cpu_up() enable_nonboot_cpus() are used solely from CONFIG_CONFIG_PM_SLEEP_SMP=y and PM_SLEEP_SMP imply HOTPLUG_CPU therefore the reference to _cpu_up() is valid. Annotate enable_nonboot_cpus() with __ref to silence modpost. Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Cc: Gautham R Shenoy <ego@in.ibm.com> Signed-off-by:
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Mike Frysinger authored
Since this header is exported to userspace and all the other types in the header have been scrubbed, this brings the last straggler in line. Signed-off-by:
Mike Frysinger <vapier@gentoo.org> Signed-off-by:
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Andi Kleen authored
Following the deprecation schedule the a.out ELF interpreter support is removed now with this patch. a.out ELF interpreters were an transition feature for moving a.out systems to ELF, but they're unlikely to be still needed. Pure a.out systems will still work of course. This allows to simplify the hairy ELF loader. Signed-off-by:
Andi Kleen <ak@suse.de> Cc: David Howells <dhowells@redhat.com> Signed-off-by:
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Pavel Emelyanov authored
The proper behavior to store task's pid and get this task later is to get the struct pid pointer and get the task with the pid_task() call. Make it for rt_mutex_waiter->deadlock_task_pid field. Signed-off-by:
Pavel Emelyanov <xemul@openvz.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
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Pavel Emelyanov authored
All the functions that need to lookup a task by pid in posix timers obtain this pid from a user space, and thus this value refers to a task in the same namespace, as the current task lives in. So the proper behavior is to call find_task_by_vpid() here. Signed-off-by:
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Paul Clements authored
Remove the arbitrary 128 device limit for NBD. nbds_max can now be set to any number. In certain scenarios where devices are used sparsely we have run into the 128 device limit. Signed-off-by:
Paul Clements <paul.clements@steeleye.com> Signed-off-by:
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Jiri Slaby authored
Instead of testing hardcoded values, use pci_match_id to reference the pci_device_id table. Sideways, it allows easy new additions to the table. [akpm@linux-foundation.org: remove wrongly-added semicolon] Signed-off-by:
Jiri Slaby <jirislaby@gmail.com> Cc: WANG Cong <xiyou.wangcong@gmail.com> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by:
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Jiri Slaby authored
Use pci_resource_start instead of accessing pci_dev struct internals. Signed-off-by:
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Miklos Szeredi authored
Add a .show_options super operation to udf. Signed-off-by:
Miklos Szeredi <mszeredi@suse.cz> Acked-by:
Cyrill Gorcunov <gorcunov@gmail.com> Acked-by:
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Andrew Morton authored
Documentation/SubmitCheckist, please. Cc: Hugh Dickins <hugh@veritas.com> Cc: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by:
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akpm@linux-foundation.org authored
Add .show_options super operation to tmpfs. Signed-off-by:
Hugh Dickins <hugh@veritas.com> Signed-off-by:
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Miklos Szeredi authored
Add a .show_options super operation to spufs. Use generic_show_options() and save the complete option string in spufs_fill_super(). Signed-off-by:
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Miklos Szeredi authored
Add a .show_options super operation to reiserfs. Use generic_show_options() and save the complete option string in reiserfs_fill_super() and reiserfs_remount(). Signed-off-by:
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Miklos Szeredi authored
Add a .show_options super operation to ncpfs. Small fix: add FS_BINARY_MOUNTDATA to the filesystem type flags, since it can take binary data, as well as text (similarly to NFS). Signed-off-by:
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Miklos Szeredi authored
Add a .show_options super operation to isofs. Use generic_show_options() and save the complete option string in isofs_fill_super(). Signed-off-by:
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Miklos Szeredi authored
Add a .show_options super operation to hugetlbfs. Use generic_show_options() and save the complete option string in hugetlbfs_fill_super(). Signed-off-by:
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Miklos Szeredi authored
Add a .show_options super operation to hpfs. Use generic_show_options() and save the complete option string in hpfs_fill_super() and hpfs_remount_fs(). Also add a small fix: hpfs_remount_fs() should return -EINVAL on error, instead of 1, which is not an error value. Signed-off-by:
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Miklos Szeredi authored
Add the "host path" option to /proc/mounts for UML hostfs filesystems. The mount source (mnt_devname) should really be used for this, but not easy to change now in a backward compatible way. Signed-off-by:
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Miklos Szeredi authored
Add blksize= option to /proc/mounts for fuseblk filesystems. Signed-off-by:
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Miklos Szeredi authored
Add flush option to /proc/mounts for msdos and vfat filesystems. Signed-off-by:
OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Signed-off-by:
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Miklos Szeredi authored
Add noreservation option to /proc/mounts for ext2 filesystems. Signed-off-by:
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Miklos Szeredi authored
Add a .show_options super operation to devpts. Small cleanup: when parsing the "mode" option, mask with S_IALLUGO instead of ~S_IFMT. Signed-off-by:
H. Peter Anvin <hpa@zytor.com> Signed-off-by:
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Miklos Szeredi authored
Add a .show_options super operation to capifs. Use generic_show_options() and save the complete option string in capifs_remount(). Signed-off-by:
Karsten Keil <kkeil@suse.de> Signed-off-by:
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Miklos Szeredi authored
Add a .show_options super operation to befs. Use generic_show_options() and save the complete option string in befs_fill_super(). Signed-off-by:
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Miklos Szeredi authored
Add a .show_options super operation to autofs. Use generic_show_options() and save the complete option string in autofs_fill_super(). Signed-off-by:
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Miklos Szeredi authored
Add uid= and gid= options to /proc/mounts for autofs4 filesystems. Signed-off-by:
Ian Kent <raven@themaw.net> Signed-off-by:
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Miklos Szeredi authored
Add a .show_options super operation to afs. Use generic_show_options() and save the complete option string in afs_get_sb(). Signed-off-by:
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Miklos Szeredi authored
Add a .show_options super operation to affs. Use generic_show_options() and save the complete option string in affs_fill_super() and affs_remount(). Signed-off-by:
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Miklos Szeredi authored
Add a .show_options super operation to adfs. Signed-off-by:
Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by:
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Miklos Szeredi authored
Add a new s_options field to struct super_block. Filesystems can save mount options passed to them in mount or remount. It is automatically freed when the superblock is destroyed. A new helper function, generic_show_options() is introduced, which uses this field to display the mount options in /proc/mounts. Another helper function, save_mount_options() may be used by filesystems to save the options in the super block. Signed-off-by:
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Miklos Szeredi authored
This series addresses the problem of showing mount options in /proc/mounts. Several filesystems which use mount options, have not implemented a .show_options superblock operation. Several others have implemented this callback, but have not kept it fully up to date with the parsed options. Q: Why do we need correct option showing in /proc/mounts? A: We want /proc/mounts to fully replace /etc/mtab. The reasons for this are: - unprivileged mounters won't be able to update /etc/mtab - /etc/mtab doesn't work with private mount namespaces - /etc/mtab can become out-of-sync with reality Q: Can't this be done, so that filesystems need not bother with implementing a .show_mounts callback, and keeping it up to date? A: Only in some cases. Certain filesystems allow modification of a subset of options in their remount_fs method. It is not possible to take this into account without knowing exactly how the filesystem handles options. For the simple case (no remount or remount resets all options) the patchset introduces two helpers: generic_show_options() save_mount_options() These can also be used to emulate the old /etc/mtab behavior, until proper support is added. Even if this is not 100% correct, it's still better than showing no options at all. The following patches fix up most in-tree filesystems, some have been compile tested only, some have been reviewed and acked by the maintainer. Table displaying status of all in-kernel filesystems: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - legend: none - fs has options, but doesn't define ->show_options() some - fs defines ->show_options(), but some only options are shown good - fs shows all options noopt - fs does not have options patch - a patch will be posted merged - a patch has been merged by subsystem maintainer 9p good adfs patch affs patch afs patch autofs patch autofs4 patch befs patch bfs noopt cifs some coda noopt configfs noopt cramfs noopt debugfs noopt devpts patch ecryptfs good efs noopt ext2 patch ext3 good ext4 merged fat patch freevxfs noopt fuse patch fusectl noopt gfs2 good gfs2meta noopt hfs good hfsplus good hostfs patch hpfs patch hppfs noopt hugetlbfs patch isofs patch jffs2 noopt jfs merged minix noopt msdos ->fat ncpfs patch nfs some nfsd noopt ntfs good ocfs2 good ocfs2/dlmfs noopt openpromfs noopt proc noopt qnx4 noopt ramfs noopt reiserfs patch romfs noopt smbfs good sysfs noopt sysv noopt udf patch ufs good vfat ->fat xfs good mm/shmem.c patch drivers/oprofile/oprofilefs.c noopt drivers/infiniband/hw/ipath/ipath_fs.c noopt drivers/misc/ibmasm/ibmasmfs.c noopt drivers/usb/core (usbfs) merged drivers/usb/gadget (gadgetfs) noopt drivers/isdn/capi/capifs.c patch kernel/cpuset.c noopt fs/binfmt_misc.c noopt net/sunrpc/rpc_pipe.c noopt arch/powerpc/platforms/cell/spufs patch arch/s390/hypfs good ipc/mqueue.c noopt security (securityfs) noopt security/selinux/selinuxfs.c noopt kernel/cgroup.c good security/smack/smackfs.c noopt in -mm: reiser4 some unionfs good - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - This patch: Document the rules for handling mount options in the .show_options super operation. Signed-off-by:
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