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2011-03-21vfs: cleanup do_vfs_ioctl()Namhyung Kim
Move declaration of 'inode' to beginning of the function. Since it is referenced directly or indirectly (in case of FIFREEZE/FITHAW/ FS_IOC_FIEMAP) it's not harmful IMHO. And remove unnecessary casts using 'argp' instead. Signed-off-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-20Merge branch 'trivial' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 * 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: (25 commits) video: change to new flag variable scsi: change to new flag variable rtc: change to new flag variable rapidio: change to new flag variable pps: change to new flag variable net: change to new flag variable misc: change to new flag variable message: change to new flag variable memstick: change to new flag variable isdn: change to new flag variable ieee802154: change to new flag variable ide: change to new flag variable hwmon: change to new flag variable dma: change to new flag variable char: change to new flag variable fs: change to new flag variable xtensa: change to new flag variable um: change to new flag variables s390: change to new flag variable mips: change to new flag variable ... Fix up trivial conflict in drivers/hwmon/Makefile
2011-03-18Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2: nilfs2: move NILFS_SUPER_MAGIC to linux/magic.h nilfs2: get rid of nilfs_sb_info structure nilfs2: use sb instance instead of nilfs_sb_info struct nilfs2: get rid of sc_sbi back pointer nilfs2: move log writer onto nilfs object nilfs2: move next generation counter into nilfs object nilfs2: move s_inode_lock and s_dirty_files into nilfs object nilfs2: move parameters on nilfs_sb_info into nilfs object nilfs2: move mount options to nilfs object nilfs2: record used amount of each checkpoint in checkpoint list nilfs2: optimize rec_len functions nilfs2: append blocksize info to warnings during loading super blocks nilfs2: add compat ioctl nilfs2: implement FS_IOC_GETFLAGS/SETFLAGS/GETVERSION nilfs2: tighten restrictions on inode flags nilfs2: mark S_NOATIME on inodes only if NOATIME attribute is set nilfs2: use common file attribute macros nilfs2: add free entries count only if clear bit operation succeeded nilfs2: decrement inodes count only if raw inode was successfully deleted
2011-03-18Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm: dlm: use alloc_workqueue function dlm: increase default hash table sizes dlm: record full callback state
2011-03-18Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: fs: call security_d_instantiate in d_obtain_alias V2 lose 'mounting_here' argument in ->d_manage() don't pass 'mounting_here' flag to follow_down() change the locking order for namespace_sem fix deadlock in pivot_root() vfs: split off vfsmount-related parts of vfs_kern_mount() Some fixes for pstore kill simple_set_mnt()
2011-03-18Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/bcopeland/omfs * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bcopeland/omfs: omfs: make readdir stop when filldir says so omfs: merge unlink() and rmdir(), close leak in rename() omfs: stop playing silly buggers with omfs_unlink() in ->rename() omfs: rename() needs to mark old_inode dirty after ctime update
2011-03-18Merge branch 'linux-next' of git://git.infradead.org/ubifs-2.6Linus Torvalds
* 'linux-next' of git://git.infradead.org/ubifs-2.6: (25 commits) UBIFS: clean-up commentaries UBIFS: save 128KiB or more RAM UBIFS: allocate orphans scan buffer on demand UBIFS: allocate lpt dump buffer on demand UBIFS: allocate ltab checking buffer on demand UBIFS: allocate scanning buffer on demand UBIFS: allocate dump buffer on demand UBIFS: do not check data crc by default UBIFS: simplify UBIFS Kconfig menu UBIFS: print max. index node size UBIFS: handle allocation failures in UBIFS write path UBIFS: use max_write_size during recovery UBIFS: use max_write_size for write-buffers UBIFS: introduce write-buffer size field UBI: incorporate LEB offset information UBIFS: incorporate maximum write size UBI: provide LEB offset information UBI: incorporate maximum write size UBIFS: fix LEB number in printk UBIFS: restrict world-writable debugfs files ...
2011-03-18Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (47 commits) doc: CONFIG_UNEVICTABLE_LRU doesn't exist anymore Update cpuset info & webiste for cgroups dcdbas: force SMI to happen when expected arch/arm/Kconfig: remove one to many l's in the word. asm-generic/user.h: Fix spelling in comment drm: fix printk typo 'sracth' Remove one to many n's in a word Documentation/filesystems/romfs.txt: fixing link to genromfs drivers:scsi Change printk typo initate -> initiate serial, pch uart: Remove duplicate inclusion of linux/pci.h header fs/eventpoll.c: fix spelling mm: Fix out-of-date comments which refers non-existent functions drm: Fix printk typo 'failled' coh901318.c: Change initate to initiate. mbox-db5500.c Change initate to initiate. edac: correct i82975x error-info reported edac: correct i82975x mci initialisation edac: correct commented info fs: update comments to point correct document target: remove duplicate include of target/target_core_device.h from drivers/target/target_core_hba.c ... Trivial conflict in fs/eventpoll.c (spelling vs addition)
2011-03-18fs: call security_d_instantiate in d_obtain_alias V2Josef Bacik
While trying to track down some NFS problems with BTRFS, I kept noticing I was getting -EACCESS for no apparent reason. Eric Paris and printk() helped me figure out that it was SELinux that was giving me grief, with the following denial type=AVC msg=audit(1290013638.413:95): avc: denied { 0x800000 } for pid=1772 comm="nfsd" name="" dev=sda1 ino=256 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:unlabeled_t:s0 tclass=file Turns out this is because in d_obtain_alias if we can't find an alias we create one and do all the normal instantiation stuff, but we don't do the security_d_instantiate. Usually we are protected from getting a hashed dentry that hasn't yet run security_d_instantiate() by the parent's i_mutex, but obviously this isn't an option there, so in order to deal with the case that a second thread comes in and finds our new dentry before we get to run security_d_instantiate(), we go ahead and call it if we find a dentry already. Eric assures me that this is ok as the code checks to see if the dentry has been initialized already so calling security_d_instantiate() against the same dentry multiple times is ok. With this patch I'm no longer getting errant -EACCESS values. Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-18lose 'mounting_here' argument in ->d_manage()Al Viro
it's always false... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-18don't pass 'mounting_here' flag to follow_down()Al Viro
it's always false now Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-18change the locking order for namespace_semAl Viro
Have it nested inside ->i_mutex. Instead of using follow_down() under namespace_sem, followed by grabbing i_mutex and checking that mountpoint to be is not dead, do the following: grab i_mutex check that it's not dead grab namespace_sem see if anything is mounted there if not, we've won otherwise drop locks put_path on what we had replace with what's mounted retry everything with new mountpoint to be New helper (lock_mount()) does that. do_add_mount(), do_move_mount(), do_loopback() and pivot_root() switched to it; in case of the last two that eliminates a race we used to have - original code didn't do follow_down(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-18fix deadlock in pivot_root()Al Viro
Don't hold vfsmount_lock over the loop traversing ->mnt_parent; do check_mnt(new.mnt) under namespace_sem instead; combined with namespace_sem held over all that code it'll guarantee the stability of ->mnt_parent chain all the way to the root. Doing check_mnt() outside of namespace_sem in case of pivot_root() is wrong anyway. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-17vfs: split off vfsmount-related parts of vfs_kern_mount()Al Viro
new function: mount_fs(). Does all work done by vfs_kern_mount() except the allocation and filling of vfsmount; returns root dentry or ERR_PTR(). vfs_kern_mount() switched to using it and taken to fs/namespace.c, along with its wrappers. alloc_vfsmnt()/free_vfsmnt() made static. functions in namespace.c slightly reordered. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-17Some fixes for pstoreTony Luck
1) Change from ->get_sb() to ->mount() 2) Use mount_single() instead of mount_nodev() 3) Pulled in ramfs_get_inode() & trimmed to what I need for pstore 4) Drop the ugly pstore_writefile() Just save data using kmalloc() and provide a pstore_file_read() that uses simple_read_from_buffer(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-17kill simple_set_mnt()Al Viro
not needed anymore, since all users (->get_sb() instances) are gone. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-17Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6: ext3: Always set dx_node's fake_dirent explicitly. ext3: Fix an overflow in ext3_trim_fs. jbd: Remove one to many n's in a word. ext3: skip orphan cleanup on rocompat fs ext2: Fix link count corruption under heavy link+rename load ext3: speed up group trim with the right free block count. ext3: Adjust trim start with first_data_block. quota: return -ENOMEM when memory allocation fails
2011-03-17Merge branch 'nfs-for-2.6.39' of ↵Linus Torvalds
git://git.linux-nfs.org/projects/trondmy/nfs-2.6 * 'nfs-for-2.6.39' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (54 commits) RPC: killing RPC tasks races fixed xprt: remove redundant check SUNRPC: Convert struct rpc_xprt to use atomic_t counters SUNRPC: Ensure we always run the tk_callback before tk_action sunrpc: fix printk format warning xprt: remove redundant null check nfs: BKL is no longer needed, so remove the include NFS: Fix a warning in fs/nfs/idmap.c Cleanup: Factor out some cut-and-paste code. cleanup: save 60 lines/100 bytes by combining two mostly duplicate functions. NFS: account direct-io into task io accounting gss:krb5 only include enctype numbers in gm_upcall_enctypes RPCRDMA: Fix FRMR registration/invalidate handling. RPCRDMA: Fix to XDR page base interpretation in marshalling logic. NFSv4: Send unmapped uid/gids to the server when using auth_sys NFSv4: Propagate the error NFS4ERR_BADOWNER to nfs4_do_setattr NFSv4: cleanup idmapper functions to take an nfs_server argument NFSv4: Send unmapped uid/gids to the server if the idmapper fails NFSv4: If the server sends us a numeric uid/gid then accept it NFSv4.1: reject zero layout with zeroed stripe unit ...
2011-03-17Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6: UDF: Fix compiler warning udf: Convert UDF to new truncate calling sequence
2011-03-17Merge branch 'for_next' into for_linusJan Kara
2011-03-17fs: change to new flag variablematt mooney
Replace EXTRA_CFLAGS with ccflags-y. And change ntfs-objs to ntfs-y for cleaner conditional inclusion. Signed-off-by: matt mooney <mfm@muteddisk.com> Acked-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
2011-03-16Merge branch 'mnt_devname' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'mnt_devname' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: vfs: bury ->get_sb() nfs: switch NFS from ->get_sb() to ->mount() nfs: stop mangling ->mnt_devname on NFS vfs: new superblock methods to override /proc/*/mount{s,info} nfs: nfs_do_{ref,sub}mount() superblock argument is redundant nfs: make nfs_path() work without vfsmount nfs: store devname at disconnected NFS roots nfs: propagate devname to nfs{,4}_get_root()
2011-03-16Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] tioca: Fix assignment from incompatible pointer warnings [IA64] mca.c: Fix cast from integer to pointer warning [IA64] setup.c Typo fix "Architechtuallly" [IA64] Add CONFIG_MISC_DEVICES=y to configs that need it. [IA64] disable interrupts at end of ia64_mca_cpe_int_handler() [IA64] Add DMA_ERROR_CODE define. pstore: fix build warning for unused return value from sysfs_create_file pstore: X86 platform interface using ACPI/APEI/ERST pstore: new filesystem interface to platform persistent storage
2011-03-16Merge branch 'config' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bklLinus Torvalds
* 'config' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl: BKL: That's all, folks fs/locks.c: Remove stale FIXME left over from BKL conversion ipx: remove the BKL appletalk: remove the BKL x25: remove the BKL ufs: remove the BKL hpfs: remove the BKL drivers: remove extraneous includes of smp_lock.h tracing: don't trace the BKL adfs: remove the big kernel lock
2011-03-16Merge branch 'driver-core-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 * 'driver-core-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (50 commits) printk: do not mangle valid userspace syslog prefixes efivars: Add Documentation efivars: Expose efivars functionality to external drivers. efivars: Parameterize operations. efivars: Split out variable registration efivars: parameterize efivars efivars: Make efivars bin_attributes dynamic efivars: move efivars globals into struct efivars drivers:misc: ti-st: fix debugging code kref: Fix typo in kref documentation UIO: add PRUSS UIO driver support Fix spelling mistakes in Documentation/zh_CN/SubmittingPatches firmware: Fix unaligned memory accesses in dmi-sysfs firmware: Add documentation for /sys/firmware/dmi firmware: Expose DMI type 15 System Event Log firmware: Break out system_event_log in dmi-sysfs firmware: Basic dmi-sysfs support firmware: Add DMI entry types to the headers Driver core: convert platform_{get,set}_drvdata to static inline functions Translate linux-2.6/Documentation/magic-number.txt into Chinese ...
2011-03-16vfs: bury ->get_sb()Al Viro
This is an ex-parrot. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-16nfs: switch NFS from ->get_sb() to ->mount()Al Viro
The last remaining instances of ->get_sb() can be converted ->mount() now - nothing in them uses new vfsmount anymore. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-16nfs: stop mangling ->mnt_devname on NFSAl Viro
now we can do that - nobody cares about its value anymore. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-16vfs: new superblock methods to override /proc/*/mount{s,info}Al Viro
a) ->show_devname(m, mnt) - what to put into devname columns in mounts, mountinfo and mountstats b) ->show_path(m, mnt) - what to put into relative path column in mountinfo Leaving those NULL gives old behaviour. NFS switched to using those. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-16nfs: nfs_do_{ref,sub}mount() superblock argument is redundantAl Viro
It's always equal to dentry->d_sb Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-16nfs: make nfs_path() work without vfsmountAl Viro
part 3: now we have everything to get nfs_path() just by dentry - just follow to (disconnected) root and pick the rest of the thing there. Start killing propagation of struct vfsmount * on the paths that used to bring it to nfs_path(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-16nfs: store devname at disconnected NFS rootsAl Viro
part 2: make sure that disconnected roots have corresponding mnt_devname values stashed into them. Have nfs*_get_root() stuff a copy of devname into ->d_fsdata of the found root, provided that it is disconnected. Have ->d_release() free it when dentry goes away. Have the places where NFS uses ->d_fsdata for sillyrename (and that can *never* happen to a disconnected root - dentry will be attached to its parent) free old devname copies if they find those. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-16nfs: propagate devname to nfs{,4}_get_root()Al Viro
step 1 of ->mnt_devname fixes: make sure we have the value of devname available in ..._get_root(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-16Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: fix cdev leak on O_PATH final fput()
2011-03-16fix cdev leak on O_PATH final fput()Miklos Szeredi
__fput doesn't need a cdev_put() for O_PATH handles. Signed-off-by: mszeredi@suse.cz Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-16Pull pstorev4 into release branchTony Luck
2011-03-16Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: (33 commits) AppArmor: kill unused macros in lsm.c AppArmor: cleanup generated files correctly KEYS: Add an iovec version of KEYCTL_INSTANTIATE KEYS: Add a new keyctl op to reject a key with a specified error code KEYS: Add a key type op to permit the key description to be vetted KEYS: Add an RCU payload dereference macro AppArmor: Cleanup make file to remove cruft and make it easier to read SELinux: implement the new sb_remount LSM hook LSM: Pass -o remount options to the LSM SELinux: Compute SID for the newly created socket SELinux: Socket retains creator role and MLS attribute SELinux: Auto-generate security_is_socket_class TOMOYO: Fix memory leak upon file open. Revert "selinux: simplify ioctl checking" selinux: drop unused packet flow permissions selinux: Fix packet forwarding checks on postrouting selinux: Fix wrong checks for selinux_policycap_netpeer selinux: Fix check for xfrm selinux context algorithm ima: remove unnecessary call to ima_must_measure IMA: remove IMA imbalance checking ...
2011-03-16Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmwLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw: GFS2: Don't use _raw version of RCU dereference GFS2: Adding missing unlock_page() GFS2: Update to AIL list locking GFS2: introduce AIL lock GFS2: fix block allocation check for fallocate GFS2: Optimize glock multiple-dequeue code GFS2: Remove potential race in flock code GFS2: Fix glock deallocation race GFS2: quota allows exceeding hard limit GFS2: deallocation performance patch GFS2: panics on quotacheck update GFS2: Improve cluster mmap scalability GFS2: Fix glock queue trace point GFS2: Post-VFS scale update for RCU path walk GFS2: Use RCU for glock hash table
2011-03-16Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: (46 commits) fs/9p: Make the writeback_fid owned by root fs/9p: Writeback dirty data before setattr fs/9p: call vmtruncate before setattr 9p opeation fs/9p: Properly update inode attributes on link fs/9p: Prevent multiple inclusion of same header fs/9p: Workaround vfs rename rehash bug fs/9p: Mark directory inode invalid for many directory inode operations fs/9p: Add . and .. dentry revalidation flag fs/9p: mark inode attribute invalid on rename, unlink and setattr fs/9p: Add support for marking inode attribute invalid fs/9p: Initialize root inode number for dotl fs/9p: Update link count correctly on different file system operations fs/9p: Add drop_inode 9p callback fs/9p: Add direct IO support in cached mode fs/9p: Fix inode i_size update in file_write fs/9p: set default readahead pages in cached mode fs/9p: Move writeback fid to v9fs_inode fs/9p: Add v9fs_inode fs/9p: Don't set stat.st_blocks based on nrpages fs/9p: Add inode hashing ...
2011-03-16Merge branch 'for-2.6.39' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wqLinus Torvalds
* 'for-2.6.39' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: workqueue: fix build failure introduced by s/freezeable/freezable/ workqueue: add system_freezeable_wq rds/ib: use system_wq instead of rds_ib_fmr_wq net/9p: replace p9_poll_task with a work net/9p: use system_wq instead of p9_mux_wq xfs: convert to alloc_workqueue() reiserfs: make commit_wq use the default concurrency level ocfs2: use system_wq instead of ocfs2_quota_wq ext4: convert to alloc_workqueue() scsi/scsi_tgt_lib: scsi_tgtd isn't used in memory reclaim path scsi/be2iscsi,qla2xxx: convert to alloc_workqueue() misc/iwmc3200top: use system_wq instead of dedicated workqueues i2o: use alloc_workqueue() instead of create_workqueue() acpi: kacpi*_wq don't need WQ_MEM_RECLAIM fs/aio: aio_wq isn't used in memory reclaim path input/tps6507x-ts: use system_wq instead of dedicated workqueue cpufreq: use system_wq instead of dedicated workqueues wireless/ipw2x00: use system_wq instead of dedicated workqueues arm/omap: use system_wq in mailbox workqueue: use WQ_MEM_RECLAIM instead of WQ_RESCUER
2011-03-16Increase OSF partition limit from 8 to 18Linus Torvalds
It turns out that while a maximum of 8 partitions may be what people "should" have had, you can actually fit up to 18 entries(*) in a sector. And some people clearly were taking advantage of that, like Michael Cree, who had ten partitions on one of his OSF disks. (*) The OSF partition data starts at byte offset 64 in the first sector, and the array of 16-byte partition entries start at offset 148 in the on-disk partition structure. Reported-by: Michael Cree <mcree@orcon.net.nz> Cc: stable@kernel.org (v2.6.38) Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-03-16prune back iprune_semChristoph Hellwig
iprune_sem is continously giving us lockdep warnings because we do take it in read mode in the reclaim path, but we're also doing non-NOFS allocations under it taken in write mode. Taking a bit deeper look at it I think it's fixable quite trivially: - for invalidate_inodes we do not need iprune_sem at all. We have an active reference on the superblock, so the filesystem is not going away until it has finished. - for evict_inodes we do need it, to make sure prune_icache has done it's work before we tear down the superblock. But there is no reason to hold it over the actual reclaim operation - it's enough to cycle through it after the actual reclaim to make sure we wait for any pending prune_icache to complete. We just have to remove the WARN_ON for otherwise busy inodes as they can actually happen now. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-16UBIFS: clean-up commentariesArtem Bityutskiy
Clean-up commentaries in debug.h and remove references to non-existing symblols. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-03-16UBIFS: save 128KiB or more RAMArtem Bityutskiy
When debugging is enabled, we allocate a buffer of PEB size for various debugging purposes. However, now all users of this buffer are gone and we can safely remove it and save 128KiB or more RAM. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-03-16UBIFS: allocate orphans scan buffer on demandArtem Bityutskiy
Instead of using pre-allocated 'c->dbg->buf' buffer in 'dbg_scan_orphans()', dynamically allocate it when needed. The intend is to get rid of the pre-allocated 'c->dbg->buf' buffer and save 128KiB of RAM (or more if PEB size is larger). Indeed, currently we allocate this memory even if the user never enables any self-check, which is wasteful. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-03-16UBIFS: allocate lpt dump buffer on demandArtem Bityutskiy
Instead of using pre-allocated 'c->dbg->buf' buffer in 'dump_lpt_leb()', dynamically allocate it when needed. The intend is to get rid of the pre-allocated 'c->dbg->buf' buffer and save 128KiB of RAM (or more if PEB size is larger). Indeed, currently we allocate this memory even if the user never enables any self-check, which is wasteful. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-03-16UBIFS: allocate ltab checking buffer on demandArtem Bityutskiy
Instead of using pre-allocated 'c->dbg->buf' buffer in 'dbg_check_ltab_lnum()', dynamically allocate it when needed. The intend is to get rid of the pre-allocated 'c->dbg->buf' buffer and save 128KiB of RAM (or more if PEB size is larger). Indeed, currently we allocate this memory even if the user never enables any self-check, which is wasteful. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-03-16UBIFS: allocate scanning buffer on demandArtem Bityutskiy
Instead of using pre-allocated 'c->dbg->buf' buffer in 'scan_check_cb()', dynamically allocate it when needed. The intend is to get rid of the pre-allocated 'c->dbg->buf' buffer and save 128KiB of RAM (or more if PEB size is larger). Indeed, currently we allocate this memory even if the user never enables any self-check, which is wasteful. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-03-16UBIFS: allocate dump buffer on demandArtem Bityutskiy
Instead of using pre-allocated 'c->dbg->buf' buffer in 'dbg_dump_leb()', dynamically allocate it when needed. The intend is to get rid of the pre-allocated 'c->dbg->buf' buffer and save 128KiB of RAM (or more if PEB size is larger). Indeed, currently we allocate this memory even if the user never enables any self-check, which is wasteful. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2011-03-16fix follow_link() breakageAl Viro
commit 574197e0de46a8a4db5c54ef7b65e43ffa8873a7 had a missing piece, breaking the loop detection ;-/ Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>