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2015-02-02xfs: change kmem_free to use generic kvfree()Wang, Yalin2-11/+4
Change kmem_free to use kvfree() generic function, remove the duplicated code. Signed-off-by: Yalin Wang <[email protected]> Reviewed-by: Brian Foster <[email protected]> Signed-off-by: Dave Chinner <[email protected]>
2015-02-02xfs: factor out a xfs_update_prealloc_flags() helperChristoph Hellwig3-60/+63
This logic is duplicated in xfs_file_fallocate and xfs_ioc_space, and we'll need another copy of it for pNFS block support. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Dave Chinner <[email protected]> Signed-off-by: Dave Chinner <[email protected]>
2015-01-30NFS: a couple off by onesDan Carpenter1-2/+2
These tests are off by one because if len == sizeof(nfs_export_path) then we have truncated the name. Signed-off-by: Dan Carpenter <[email protected]> Signed-off-by: Trond Myklebust <[email protected]>
2015-01-30nfs: prevent truncate on active swapfileOmar Sandoval1-1/+6
Most filesystems prevent truncation of an active swapfile by way of inode_newsize_ok, called from inode_change_ok. NFS doesn't call either from nfs_setattr, presumably because most of these checks are expected to be done server-side. However, the IS_SWAPFILE check can only be done client-side, and truncating a swapfile can't possibly be good. Signed-off-by: Omar Sandoval <[email protected]> Signed-off-by: Trond Myklebust <[email protected]>
2015-01-30nfs: don't call blocking operations while !TASK_RUNNINGJeff Layton1-3/+5
Bruce reported seeing this warning pop when mounting using v4.1: ------------[ cut here ]------------ WARNING: CPU: 1 PID: 1121 at kernel/sched/core.c:7300 __might_sleep+0xbd/0xd0() do not call blocking ops when !TASK_RUNNING; state=1 set at [<ffffffff810ff58f>] prepare_to_wait+0x2f/0x90 Modules linked in: rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace sunrpc fscache ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 xt_conntrack ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw snd_hda_codec_generic snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep snd_pcm snd_timer ppdev joydev snd virtio_console virtio_balloon pcspkr serio_raw parport_pc parport pvpanic floppy soundcore i2c_piix4 virtio_blk virtio_net qxl drm_kms_helper ttm drm virtio_pci virtio_ring ata_generic virtio pata_acpi CPU: 1 PID: 1121 Comm: nfsv4.1-svc Not tainted 3.19.0-rc4+ #25 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140709_153950- 04/01/2014 0000000000000000 000000004e5e3f73 ffff8800b998fb48 ffffffff8186ac78 0000000000000000 ffff8800b998fba0 ffff8800b998fb88 ffffffff810ac9da ffff8800b998fb68 ffffffff81c923e7 00000000000004d9 0000000000000000 Call Trace: [<ffffffff8186ac78>] dump_stack+0x4c/0x65 [<ffffffff810ac9da>] warn_slowpath_common+0x8a/0xc0 [<ffffffff810aca65>] warn_slowpath_fmt+0x55/0x70 [<ffffffff810ff58f>] ? prepare_to_wait+0x2f/0x90 [<ffffffff810ff58f>] ? prepare_to_wait+0x2f/0x90 [<ffffffff810dd2ad>] __might_sleep+0xbd/0xd0 [<ffffffff8124c973>] kmem_cache_alloc_trace+0x243/0x430 [<ffffffff810d941e>] ? groups_alloc+0x3e/0x130 [<ffffffff810d941e>] groups_alloc+0x3e/0x130 [<ffffffffa0301b1e>] svcauth_unix_accept+0x16e/0x290 [sunrpc] [<ffffffffa0300571>] svc_authenticate+0xe1/0xf0 [sunrpc] [<ffffffffa02fc564>] svc_process_common+0x244/0x6a0 [sunrpc] [<ffffffffa02fd044>] bc_svc_process+0x1c4/0x260 [sunrpc] [<ffffffffa03d5478>] nfs41_callback_svc+0x128/0x1f0 [nfsv4] [<ffffffff810ff970>] ? wait_woken+0xc0/0xc0 [<ffffffffa03d5350>] ? nfs4_callback_svc+0x60/0x60 [nfsv4] [<ffffffff810d45bf>] kthread+0x11f/0x140 [<ffffffff810ea815>] ? local_clock+0x15/0x30 [<ffffffff810d44a0>] ? kthread_create_on_node+0x250/0x250 [<ffffffff81874bfc>] ret_from_fork+0x7c/0xb0 [<ffffffff810d44a0>] ? kthread_create_on_node+0x250/0x250 ---[ end trace 675220a11e30f4f2 ]--- nfs41_callback_svc does most of its work while in TASK_INTERRUPTIBLE, which is just wrong. Fix that by finishing the wait immediately if we've found that the list has something on it. Also, we don't expect this kthread to accept signals, so we should be using a TASK_UNINTERRUPTIBLE sleep instead. That however, opens us up hung task warnings from the watchdog, so have the schedule_timeout wake up every 60s if there's no callback activity. Reported-by: "J. Bruce Fields" <[email protected]> Signed-off-by: Jeff Layton <[email protected]> Cc: [email protected] Signed-off-by: Trond Myklebust <[email protected]>
2015-01-30Merge branch 'for-linus' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs Pull btrfs fix from Chris Mason: "We have one more fix for btrfs in my for-linus branch - this was a bug in the new raid5/6 scrubbing support" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: btrfs: fix raid56 scrub failed in xfstests btrfs/072
2015-01-30Merge branch 'for_linus' of ↵Linus Torvalds7-192/+272
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull quota and UDF fix from Jan Kara: "A fix for UDF to properly free preallocated blocks and a fix for quota so that Q_GETQUOTA quotactl reports correct numbers for XFS filesystem (and similarly Q_XGETQUOTA quotactl works properly for other filesystems)" * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: quota: Switch ->get_dqblk() and ->set_dqblk() to use bytes as space units udf: Release preallocation on last writeable close
2015-01-30quota: Store maximum space limit in bytesJan Kara4-23/+13
Currently maximum space limit quota format supports is in blocks however since we store space limits in bytes, this is somewhat confusing. So store the maximum limit in bytes as well. Also rename the field to match the new unit and related inode field to match the new naming scheme. Reviewed-by: Christoph Hellwig <[email protected]> Signed-off-by: Jan Kara <[email protected]>
2015-01-30quota: Remove quota_on_meta callbackJan Kara1-4/+1
There are no more users for quota_on_meta callback. Just remove it. Reviewed-by: Christoph Hellwig <[email protected]> Signed-off-by: Jan Kara <[email protected]>
2015-01-30ocfs2: Use generic helpers for quotaon and quotaoffJan Kara1-31/+1
Ocfs2 can just use the generic helpers provided by quota code for turning quotas on and off when quota files are stored as system inodes. The only difference is the feature test in ocfs2_quota_on() and that is covered by dquot_quota_enable() checking whether usage tracking is enabled (which can happen only if the filesystem has the quota feature set). Signed-off-by: Jan Kara <[email protected]>
2015-01-30ext4: Use generic helpers for quotaon and quotaoffJan Kara1-41/+1
Ext4 can just use the generic helpers provided by quota code for turning quotas on and off when quota files are stored as system inodes. The only difference is the feature test in ext4_quota_on_sysfile() but the same is achieved in dquot_quota_enable() by checking whether usage tracking for the corresponding quota type is enabled (which can happen only if quota feature is set). Reviewed-by: Christoph Hellwig <[email protected]> Signed-off-by: Jan Kara <[email protected]>
2015-01-30quota: Add ->quota_{enable,disable} callbacks for VFS quotasJan Kara1-0/+91
Add functions which translate ->quota_enable / ->quota_disable calls into appropriate changes in VFS quota. This will enable filesystems supporting VFS quota files in system inodes to be controlled via Q_XQUOTA[ON|OFF] quotactls for better userspace compatibility. Also provide a vector for quotactl using these functions which can be used by filesystems with quota files stored in hidden system files. Signed-off-by: Jan Kara <[email protected]>
2015-01-30quota: Wire up ->quota_{enable,disable} callbacks into Q_QUOTA{ON,OFF}Jan Kara1-4/+27
Make Q_QUOTAON / Q_QUOTAOFF quotactl call ->quota_enable / ->quota_disable callback when provided. To match current behavior of ocfs2 & ext4 we make these quotactls turn on / off quota enforcement for appropriate quota type. Reviewed-by: Christoph Hellwig <[email protected]> Signed-off-by: Jan Kara <[email protected]>
2015-01-30quota: Split ->set_xstate callback into twoJan Kara2-26/+53
Split ->set_xstate callback into two callbacks - one for turning quotas on (->quota_enable) and one for turning quotas off (->quota_disable). That way we don't have to pass quotactl command into the callback which seems cleaner. Reviewed-by: Christoph Hellwig <[email protected]> Signed-off-by: Jan Kara <[email protected]>
2015-01-30Merge branch 'for_linus' into for_nextJan Kara22-345/+475
2015-01-29Merge tag 'nfs-for-3.19-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds4-5/+10
Pull NFS client bugfixes from Trond Myklebust: "Highlights include: - Stable fix for a NFSv4.1 Oops on mount - Stable fix for an O_DIRECT deadlock condition - Fix an issue with submounted volumes and fake duplicate inode numbers" * tag 'nfs-for-3.19-3' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: NFS: Fix use of nfs_attr_use_mounted_on_fileid() NFSv4.1: Fix an Oops in nfs41_walk_client_list nfs: fix dio deadlock when O_DIRECT flag is flipped
2015-01-29Merge tag 'efi-next' of ↵Ingo Molnar3-2/+3
git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi into x86/efi Pull EFI updates from Matt Fleming: " - Move efivarfs from the misc filesystem section to pseudo filesystem, since that's a more logical and accurate place - Leif Lindholm - Update efibootmgr URL in Kconfig help - Peter Jones - Improve accuracy of EFI guid function names - Borislav Petkov - Expose firmware platform size in sysfs for the benefit of EFI boot loader installers and other utilities - Steve McIntyre - Cleanup __init annotations for arm64/efi code - Ard Biesheuvel - Mark the UIE as unsupported for rtc-efi - Ard Biesheuvel - Fix memory leak in error code path of runtime map code - Dan Carpenter - Improve robustness of get_memory_map() by removing assumptions on the size of efi_memory_desc_t (which could change in future spec versions) and querying the firmware instead of guessing about the memmap size - Ard Biesheuvel - Remove superfluous guid unparse calls - Ivan Khoronzhuk - Delete unnecessary chosen@0 DT node FDT code since was duplicated from code in drivers/of and is entirely unnecessary - Leif Lindholm There's nothing super scary, mainly cleanups, and a merge from Ricardo who kindly picked up some patches from the linux-efi mailing list while I was out on annual leave in December. Perhaps the biggest risk is the get_memory_map() change from Ard, which changes the way that both the arm64 and x86 EFI boot stub build the early memory map. It would be good to have it bake in linux-next for a while. " Signed-off-by: Ingo Molnar <[email protected]>
2015-01-29fs: add vfs_iter_{read,write} helpersChristoph Hellwig2-14/+48
Simple helpers that pass an arbitrary iov_iter to filesystems. Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: Al Viro <[email protected]>
2015-01-29new helper: iov_iter_bvec()Al Viro1-5/+2
similar to iov_iter_kvec(), for ITER_BVEC ones Signed-off-by: Al Viro <[email protected]>
2015-01-28UBIFS: add a couple of extra assertsArtem Bityutskiy1-0/+4
... to catch possible memory corruptions. Reported-by: Dan Carpenter <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]>
2015-01-28UBIFS: add ubifs_err() to print error reasonSubodh Nijsure1-4/+13
This patch adds ubifs_err() output to some error paths to tell the user what's going on. Artem: improve the messages, rename too long variable Signed-off-by: Subodh Nijsure <[email protected]> Signed-off-by: Marc Kleine-Budde <[email protected]> Signed-off-by: Ben Shelton <[email protected]> Acked-by: Brad Mouring <[email protected]> Acked-by: Terry Wilcox <[email protected]> Acked-by: Gratian Crisan <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]>
2015-01-28UBIFS: Add security.* XATTR support for the UBIFSSubodh Nijsure4-0/+99
Artem: rename static functions so that they do not use the "ubifs_" prefix - we only use this prefix for non-static functions. Artem: remove few junk white-space changes in file.c Signed-off-by: Subodh Nijsure <[email protected]> Signed-off-by: Marc Kleine-Budde <[email protected]> Signed-off-by: Ben Shelton <[email protected]> Acked-by: Brad Mouring <[email protected]> Acked-by: Terry Wilcox <[email protected]> Acked-by: Gratian Crisan <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]>
2015-01-28UBIFS: Add xattr support for symlinksSubodh Nijsure2-5/+16
Artem: rename the __ubifs_setxattr() functions to just 'setxattr()'. Signed-off-by: Subodh Nijsure <[email protected]> Signed-off-by: Marc Kleine-Budde <[email protected]> Signed-off-by: Ben Shelton <[email protected]> Acked-by: Terry Wilcox <[email protected]> Acked-by: Gratian Crisan <[email protected]> Signed-off-by: Artem Bityutskiy <[email protected]>
2015-01-28quota: Switch ->get_dqblk() and ->set_dqblk() to use bytes as space unitsJan Kara6-191/+271
Currently ->get_dqblk() and ->set_dqblk() use struct fs_disk_quota which tracks space limits and usage in 512-byte blocks. However VFS quotas track usage in bytes (as some filesystems require that) and we need to somehow pass this information. Upto now it wasn't a problem because we didn't do any unit conversion (thus VFS quota routines happily stuck number of bytes into d_bcount field of struct fd_disk_quota). Only if you tried to use Q_XGETQUOTA or Q_XSETQLIM for VFS quotas (or Q_GETQUOTA / Q_SETQUOTA for XFS quotas), you got bogus results. Hardly anyone tried this but reportedly some Samba users hit the problem in practice. So when we want interfaces compatible we need to fix this. We bite the bullet and define another quota structure used for passing information from/to ->get_dqblk()/->set_dqblk. It's somewhat sad we have to have more conversion routines in fs/quota/quota.c and another copying of quota structure slows down getting of quota information by about 2% but it seems cleaner than overloading e.g. units of d_bcount to bytes. CC: [email protected] Reviewed-by: Christoph Hellwig <[email protected]> Signed-off-by: Jan Kara <[email protected]>
2015-01-28udf: Release preallocation on last writeable closeJan Kara1-1/+1
Commit 6fb1ca92a640 "udf: Fix race between write(2) and close(2)" changed the condition when preallocation is released. The idea was that we don't want to release the preallocation for an inode on close when there are other writeable file descriptors for the inode. However the condition was written in the opposite way so we released preallocation only if there were other writeable file descriptors. Fix the problem by changing the condition properly. CC: [email protected] Fixes: 6fb1ca92a6409a9d5b0696447cd4997bc9aaf5a2 Reported-by: Fabian Frederick <[email protected]> Signed-off-by: Jan Kara <[email protected]>
2015-01-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller15-80/+136
Conflicts: arch/arm/boot/dts/imx6sx-sdb.dts net/sched/cls_bpf.c Two simple sets of overlapping changes. Signed-off-by: David S. Miller <[email protected]>
2015-01-27btrfs: fix raid56 scrub failed in xfstests btrfs/072Gui Hecheng1-0/+2
The xfstests btrfs/072 reports uncorrectable read errors in dmesg, because scrub forgets to use commit_root for parity scrub routine and scrub attempts to scrub those extents items whose contents are not fully on disk. To fix it, we just add the @search_commit_root flag back. Signed-off-by: Gui Hecheng <[email protected]> Signed-off-by: Qu Wenruo <[email protected]> Reviewed-by: Miao Xie <[email protected]> Signed-off-by: Chris Mason <[email protected]>
2015-01-26cifs: fix MUST SecurityFlags filteringNiklas Cassel1-2/+4
If CONFIG_CIFS_WEAK_PW_HASH is not set, CIFSSEC_MUST_LANMAN and CIFSSEC_MUST_PLNTXT is defined as 0. When setting new SecurityFlags without any MUST flags, your flags would be overwritten with CIFSSEC_MUST_LANMAN (0). Signed-off-by: Niklas Cassel <[email protected]> Signed-off-by: Steve French <[email protected]>
2015-01-26GFS2: Eliminate a nonsense gotoBob Peterson1-3/+0
This patch just removes a goto that did nothing. Signed-off-by: Bob Peterson <[email protected]> Signed-off-by: Steven Whitehouse <[email protected]>
2015-01-26ext4: change to use setup_timer() instead of init_timer()Jan Mrazek1-3/+2
Signed-off-by: Jan Mrazek <[email protected]> Signed-off-by: Theodore Ts'o <[email protected]>
2015-01-25switch the IO-triggering parts of umount to fs_pinAl Viro3-29/+20
Signed-off-by: Al Viro <[email protected]>
2015-01-25new fs_pin killing logicsAl Viro1-6/+48
Signed-off-by: Al Viro <[email protected]>
2015-01-25allow attaching fs_pin to a group not associated with some superblockAl Viro3-10/+16
Signed-off-by: Al Viro <[email protected]>
2015-01-25dcache: let the dentry count go down to zero without taking d_lockLinus Torvalds1-4/+114
We can be more aggressive about this, if we are clever and careful. This is subtle. Signed-off-by: Linus Torvalds <[email protected]> Signed-off-by: Al Viro <[email protected]>
2015-01-25pull bumping refcount into ->kill()Al Viro1-12/+0
there will be one more change of ->kill() calling conventions; this isn't final. Signed-off-by: Al Viro <[email protected]>
2015-01-25kill pin_put()Al Viro1-11/+0
Signed-off-by: Al Viro <[email protected]>
2015-01-25gut proc_register() a bitAl Viro1-17/+8
There are only 3 callers and quite a bit of that thing is executed exactly in one of those. Just lift it there... Signed-off-by: Al Viro <[email protected]>
2015-01-25kill d_validate()Al Viro1-31/+0
no users left Signed-off-by: Al Viro <[email protected]>
2015-01-25ncpfs: get rid of d_validate() nonsenseAl Viro3-77/+52
What we want is to have non-counting references to children in pagecache of parent directory, and avoid picking them after a child has been freed. Fine, so let's just have ->d_prune() clear parent's inode "has directory contents in page cache" flag. That way we don't need ->d_fsdata for storing offsets, so we can use it as a quick and dirty "is it referenced from page cache" flag. Signed-off-by: Al Viro <[email protected]>
2015-01-25Merge branch 'for-linus' of ↵Linus Torvalds1-16/+5
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs fixes from Al Viro: "A couple of fixes - deadlock in CIFS and build breakage in cris serial driver (resurfaced f_dentry in there)" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: VFS: Convert file->f_dentry->d_inode to file_inode() fix deadlock in cifs_ioctl_clone()
2015-01-25new primitive: debugfs_create_automount()Al Viro1-0/+48
Signed-off-by: Al Viro <[email protected]>
2015-01-25debugfs: split end_creating() into success and failure casesAl Viro1-14/+13
... and don't bother with dput(dentry) in the former and with dget(dentry) preceding all its calls. Signed-off-by: Al Viro <[email protected]>
2015-01-25debugfs: take mode-dependent parts of debugfs_get_inode() into callersAl Viro1-32/+16
... and trim the arguments list Signed-off-by: Al Viro <[email protected]>
2015-01-25fold debugfs_mknod() into callersAl Viro1-37/+31
Signed-off-by: Al Viro <[email protected]>
2015-01-25fold debugfs_create() into callerAl Viro1-14/+3
Signed-off-by: Al Viro <[email protected]>
2015-01-25fold debugfs_mkdir() into callerAl Viro1-15/+6
Signed-off-by: Al Viro <[email protected]>
2015-01-25debugfs_mknod(): get rid useless argumentsAl Viro1-17/+11
dev is always zero, dir was only used to get its ->i_sb, which is equal to ->d_sb of dentry... Signed-off-by: Al Viro <[email protected]>
2015-01-25fold debugfs_link() into callerAl Viro1-9/+2
Signed-off-by: Al Viro <[email protected]>
2015-01-25debugfs: kill __create_file()Al Viro1-38/+33
Signed-off-by: Al Viro <[email protected]>
2015-01-25debugfs: split the beginning and the end of __create_file() offAl Viro1-22/+39
Signed-off-by: Al Viro <[email protected]>
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