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2014-09-11nfsd: update mtime on truncateChristoph Hellwig
This fixes a failure in xfstests generic/313 because nfs doesn't update mtime on a truncate. The protocol requires this to be done implicity for a size changing setattr. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2014-09-11GFS2: Don't use MAXQUOTAS valueJan Kara
MAXQUOTAS value defines maximum number of quota types VFS supports. This isn't necessarily the number of types gfs2 supports and with addition of project quotas these two numbers stop matching. So make gfs2 use its private definition. CC: cluster-devel@redhat.com Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2014-09-11GFS2: Hash the negative dentry during inode lookupBenjamin Coddington
Fix a regression introduced by: 6d4ade986f9c8df31e68 GFS2: Add atomic_open support where an early return misses d_splice_alias() which had been adding the negative dentry. Signed-off-by: Benjamin Coddington <bcodding@redhat.com> Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2014-09-10f2fs: remove lengthy inode->i_inoJaegeuk Kim
This patch is to remove lengthy name by adding a new variable. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-09-10Merge branch 'akpm' (fixes from Andrew Morton)Linus Torvalds
Merge misc fixes from Andrew Morton: "10 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: fs/notify: don't show f_handle if exportfs_encode_inode_fh failed fsnotify/fdinfo: use named constants instead of hardcoded values kcmp: fix standard comparison bug mm/mmap.c: use pr_emerg when printing BUG related information shm: add memfd.h to UAPI export list checkpatch: allow commit descriptions on separate line from commit id sh: get_user_pages_fast() must flush cache eventpoll: fix uninitialized variable in epoll_ctl kernel/printk/printk.c: fix faulty logic in the case of recursive printk mem-hotplug: let memblock skip the hotpluggable memory regions in __next_mem_range()
2014-09-10fs/notify: don't show f_handle if exportfs_encode_inode_fh failedAndrey Vagin
Currently we handle only ENOSPC. In case of other errors the file_handle variable isn't filled properly and we will show a part of stack. Signed-off-by: Andrey Vagin <avagin@openvz.org> Acked-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-09-10fsnotify/fdinfo: use named constants instead of hardcoded valuesAndrey Vagin
MAX_HANDLE_SZ is equal to 128, but currently the size of pad is only 64 bytes, so exportfs_encode_inode_fh can return an error. Signed-off-by: Andrey Vagin <avagin@openvz.org> Acked-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-09-10eventpoll: fix uninitialized variable in epoll_ctlNicolas Iooss
When calling epoll_ctl with operation EPOLL_CTL_DEL, structure epds is not initialized but ep_take_care_of_epollwakeup reads its event field. When this unintialized field has EPOLLWAKEUP bit set, a capability check is done for CAP_BLOCK_SUSPEND in ep_take_care_of_epollwakeup. This produces unexpected messages in the audit log, such as (on a system running SELinux): type=AVC msg=audit(1408212798.866:410): avc: denied { block_suspend } for pid=7754 comm="dbus-daemon" capability=36 scontext=unconfined_u:unconfined_r:unconfined_t tcontext=unconfined_u:unconfined_r:unconfined_t tclass=capability2 permissive=1 type=SYSCALL msg=audit(1408212798.866:410): arch=c000003e syscall=233 success=yes exit=0 a0=3 a1=2 a2=9 a3=7fffd4d66ec0 items=0 ppid=1 pid=7754 auid=1000 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=3 comm="dbus-daemon" exe="/usr/bin/dbus-daemon" subj=unconfined_u:unconfined_r:unconfined_t key=(null) ("arch=c000003e syscall=233 a1=2" means "epoll_ctl(op=EPOLL_CTL_DEL)") Remove use of epds in epoll_ctl when op == EPOLL_CTL_DEL. Fixes: 4d7e30d98939 ("epoll: Add a flag, EPOLLWAKEUP, to prevent suspend while epoll events are ready") Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Arve Hjønnevåg <arve@android.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-09-10Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs Pull UDF fixes from Jan Kara: "Fixes for UDF handling of NFS handles and one fix for proper handling of corrupted media" * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: udf: saner calling conventions for udf_new_inode() udf: fix the udf_iget() vs. udf_new_inode() races udf: merge the pieces inserting a new non-directory object into directory udf: Set i_generation field udf: Properly detect stale inodes udf: Make udf_read_inode() and udf_iget() return error udf: Avoid infinite loop when processing indirect ICBs udf: Fold udf_fill_inode() into __udf_read_inode() udf: Avoid dir link count to go negative
2014-09-10nfs: add __acquires and __releases annotations to seqfile start/stop routinesJeff Layton
To make sparse happy... Signed-off-by: Jeff Layton <jlayton@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10nfs: fix RCU cl_xprt handling in nfs_swap_activate/deactivateJeff Layton
sparse says: fs/nfs/file.c:543:60: warning: incorrect type in argument 1 (different address spaces) fs/nfs/file.c:543:60: expected struct rpc_xprt *xprt fs/nfs/file.c:543:60: got struct rpc_xprt [noderef] <asn:4>*cl_xprt fs/nfs/file.c:548:53: warning: incorrect type in argument 1 (different address spaces) fs/nfs/file.c:548:53: expected struct rpc_xprt *xprt fs/nfs/file.c:548:53: got struct rpc_xprt [noderef] <asn:4>*cl_xprt cl_xprt is RCU-managed, so we need to take care to dereference and use it while holding the RCU read lock. Cc: Mel Gorman <mgorman@suse.de> Signed-off-by: Jeff Layton <jlayton@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10nfs: setattr can only change regular file sizesChristoph Hellwig
The VFS never calls setattr with ATTR_SIZE on anything but regular files. Remove the if check and turn it into an assert similar to what some other file systems do. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10pnfs/blocklayout: use the device id cacheChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10pnfs: add a nfs4_get_deviceid helperChristoph Hellwig
This will be used by the block layout driver when splitting extents. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10pnfs: add a common GETDEVICELIST implementationChristoph Hellwig
At a simple helper to issue a GETDEVICELIST operation and pre-load the device id cache based on the result. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10pnfs: factor GETDEVICEINFO implementationsChristoph Hellwig
Add support to the common pNFS core to issue GETDEVICEINFO calls on a device ID cache miss. The code is taken from the well debugged file layout implementation and calls out to the layoutdriver through a new alloc_deviceid_node method. The calling conventions for nfs4_find_get_deviceid are changed so that all information needed to send a GETDEVICEINFO request is passed to the common code. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10pnfs/blocklayout: return layouts on setattrChristoph Hellwig
This speads up truncate-heavy workloads like fsx by multiple orders of magnitude. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10pnfs/blocklayout: implement the return_range methodChristoph Hellwig
This allows removing extents from the extent tree especially on truncate operations, and thus fixing reads from truncated and re-extended that previously returned stale data. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10pnfs/blocklayout: rewrite extent trackingChristoph Hellwig
Currently the block layout driver tracks extents in three separate data structures: - the two list of pnfs_block_extent structures returned by the server - the list of sectors that were in invalid state but have been written to - a list of pnfs_block_short_extent structures for LAYOUTCOMMIT All of these share the property that they are not only highly inefficient data structures, but also that operations on them are even more inefficient than nessecary. In addition there are various implementation defects like: - using an int to track sectors, causing corruption for large offsets - incorrect normalization of page or block granularity ranges - insufficient error handling - incorrect synchronization as extents can be modified while they are in use This patch replace all three data with a single unified rbtree structure tracking all extents, as well as their in-memory state, although we still need to instance for read-only and read-write extent due to the arcane client side COW feature in the block layouts spec. To fix the problem of extent possibly being modified while in use we make sure to return a copy of the extent for use in the write path - the extent can only be invalidated by a layout recall or return which has to wait until the I/O operations finished due to refcounts on the layout segment. The new extent tree work similar to the schemes used by block based filesystems like XFS or ext4. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10pnfs/blocklayout: don't set pages uptodateChristoph Hellwig
The core nfs code handles setting pages uptodate on reads, no need to mess with the pageflags outselves. Also remove a debug function to dump page flags. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10pnfs/blocklayout: remove read-modify-write handling in bl_write_pagelistChristoph Hellwig
Use the new PNFS_READ_WHOLE_PAGE flag to offload read-modify-write handling to core nfs code, and remove a huge chunk of deadlock prone mess from the block layout writeback path. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10pnfs: add return_range methodChristoph Hellwig
If a layout driver keeps per-inode state outside of the layout segments it needs to be notified of any layout returns or recalls on an inode, and not just about the freeing of layout segments. Add a method to acomplish this, which will allow the block layout driver to handle the case of truncated and re-expanded files properly. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10pnfs: add flag to force read-modify-write in ->write_beginChristoph Hellwig
Like all block based filesystems, the pNFS block layout driver can't read or write at a byte granularity and thus has to perform read-modify-write cycles on writes smaller than this granularity. Add a flag so that the core NFS code always reads a whole page when starting a smaller write, so that we can do it in the place where the VFS expects it instead of doing in very deadlock prone way in the writeback handler. Note that in theory we could do less than page size reads here for disks that have a smaller sector size which are served by a server with a smaller pnfs block size. But so far that doesn't seem like a worthwhile optimization. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10pnfs: force a layout commit when encountering busy segments during recallChristoph Hellwig
Expedite layout recall processing by forcing a layout commit when we see busy segments. Without it the layout recall might have to wait until the VM decided to start writeback for the file, which can introduce long delays. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10NFS: Fix a compile warning when !(CONFIG_NFS_V3 || CONFIG_NFS_V4)Trond Myklebust
gcc reports: linux/fs/nfs/write.c: In function ‘nfs_page_find_head_request_locked.isra.17’: linux/fs/nfs/write.c:121:64: warning: ‘cinfo.mds’ may be used uninitialized in this function [-Wmaybe-uninitialized] list_for_each_entry_safe(freq, t, &cinfo.mds->list, wb_list) { ^ linux/fs/nfs/write.c:110:25: note: ‘cinfo.mds’ was declared here struct nfs_commit_info cinfo; Reported-by: Anna Schumaker <Anna.Schumaker@netapp.com> Cc: Weston Andros Adamson <dros@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10pnfs/blocklayout: correctly decrement extent lengthChristoph Hellwig
When we do non-page sized reads we can underflow the extent_length variable and read incorrect data. Fix the extent_length calculation and change to defensive <= checks for the extent length in the read and write path. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10pnfs/blocklayout: plug block queuesChristoph Hellwig
Make sure the block queue is plugged when performing pNFS blocklayout I/O. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10pnfs/blocklayout: improve GETDEVICEINFO error reportingChristoph Hellwig
Tell userspace what stage of GETDEVICEINFO failed so that there is a chance to debug it, especially with the userspace daemon clusterf***k in the block layout driver. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10pnfs/blocklayout: reject pnfs blocksize larger than page sizeChristoph Hellwig
The Linux VM subsystem can't support block sizes larger than page size for block based filesystems very well. While this can be hacked around to some extent for simple filesystems the read-modify-write cycles required for pnfs block invalid extents are extremly deadlock prone when operating on multiple pages. Reject this case early on instead of pretending to support it (badly). Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10pnfs: allow splicing pre-encoded pages into the layoutcommit argsChristoph Hellwig
Currently there is no XDR buffer space allocated for the per-layout driver layoutcommit payload, which leads to server buffer overflows in the blocklayout driver even under simple workloads. As we can't do per-layout sizes for XDR operations we'll have to splice a previously encoded list of pages into the XDR stream, similar to how we handle ACL buffers. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10pnfs: avoid using stale stateids after layoutreturnChristoph Hellwig
After we issued a layoutreturn operations the may free the layout stateid and will thus cause bad stateid error when the client uses it again. We currently try to avoid this case by chosing the open stateid if not lsegs are present for this inode. But various places can hold refererence on lsegs and thus cause the list not to be empty shortly after a layout return. Add an explicit flag to mark the current layout stateid invalid and force usage of the openstateid after we did a full file layoutreturn. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10pnfs: retry after a bad stateid error from layoutgetChristoph Hellwig
Currently we fall through to nfs4_async_handle_error when we get a bad stateid error back from layoutget. nfs4_async_handle_error with a NULL state argument will never retry the operations but return the error to higher layer, causing an avoiable fallback to MDS I/O. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10pnfs: don't check sequence on new stateids in layoutgetChristoph Hellwig
When layoutget returns an entirely new layout stateid it should not check the generation counter as the new stateid will start with a new counter entirely unrelated to old one. The current behavior causes constant layoutget failures against a block server which allocates a new stateid after an recall that removed all outstanding layouts. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10pnfs: do not pass uninitialized lsegs to ->free_lsegChristoph Hellwig
Ensure the lsegs are initialized early so that we don't pass an unitialized one back to ->free_lseg during error processing. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10nfs: cap request size to fit a kmalloced page arrayChristoph Hellwig
pNFS servers may return arbitrarily large layouts. Trim back the I/O size to one that we can at least allocate the page array for. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10nfs/filelayout: set layoutcommit depending on write verifierPeng Tao
Following http://www.rfc-editor.org/errata_search.php?rfc=5661&eid=2751 Don't set layoutcommit for commit_through_mds case. For FILE_SYNC writes, don't set layoutcommit. For DATA_SYNC wirtes, set layout commit right after wirtes done. For UNSTABLE writes, set layout commit when commit done. Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10nfs41: add a helper function to set layoutcommit after commitPeng Tao
Track lwb in nfs_commit_data so that we can use it to setup layoutcommit in commit_done callback. Signed-off-by: Peng Tao <tao.peng@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10NFS: Clear up state owner lock usageAnna Schumaker
can_open_cached() reads values out of the state structure, meaning that we need the so_lock to have a correct return value. As a bonus, this helps clear up some potentially confusing code. Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-10pnfs: fix filelayout_retry_commit when idx > 0Weston Andros Adamson
filelayout_retry_commit was recently split out from alloc_ds_commits, but was done in such a way that the bucket pointer always starts at index 0 no matter what the @idx argument is set to. The intention of the @idx argument is to retry commits starting at bucket @idx. This is called when alloc_ds_commits fails for a bucket. Signed-off-by: Weston Andros Adamson <dros@primarydata.com> Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
2014-09-09Merge branch 'for-next-3.17' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds
Pull cifs/smb3 fixes from Steve French: "This includes various cifs and smb3 bug fixes including those for bugs found with the recently updated xfstests. Also I am working fixes for two additional cifs problems found by xfstests which I plan to send later (when reviewed and run additional tests)" * 'for-next-3.17' of git://git.samba.org/sfrench/cifs-2.6: Clarify Kconfig help text for CIFS and SMB2/SMB3 CIFS: Fix wrong filename length for SMB2 CIFS: Fix wrong restart readdir for SMB1 CIFS: Fix directory rename error cifs: No need to send SIGKILL to demux_thread during umount cifs: Allow directIO read/write during cache=strict cifs: remove unneeded check of null checking in if condition cifs: fix a possible use of uninit variable in SMB2_sess_setup cifs: fix memory leak when password is supplied multiple times cifs: fix a possible null pointer deref in decode_ascii_ssetup Trivial whitespace fix
2014-09-09f2fs: fix negative value for lseek offsetJaegeuk Kim
If application throws negative value of lseek with SEEK_DATA|SEEK_HOLE, previous f2fs went into BUG_ON in get_dnode_of_data, which was reported by Tommi Rantala. He could make a simple code to detect this having: lseek(fd, -17595150933902LL, SEEK_DATA); This patch should resolve that bug. Reported-by: Tommi Rentala <tt.rantala@gmail.com> [Jaegeuk Kim: relocate the condition as suggested by Chao] Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-09-09f2fs: avoid node page to be written twice in gc_node_segmentHuang Ying
In gc_node_segment, if node page gc is run concurrently with node page writeback, and check_valid_map and get_node_page run after page locked and before cur_valid_map is updated as below, it is possible for the page to be written twice unnecessarily. sync_node_pages try_lock_page ... check_valid_map f2fs_write_node_page ... write_node_page do_write_page allocate_data_block ... refresh_sit_entry /* update cur_valid_map */ ... ... unlock_page get_node_page ... set_page_dirty ... f2fs_put_page unlock_page This can be solved via calling check_valid_map after get_node_page again. Signed-off-by: Huang, Ying <ying.huang@intel.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-09-09f2fs: use lock-less list(llist) to simplify the flush cmd managementGu Zheng
We use flush cmd control to collect many flush cmds, and flush them together. In this case, we use two list to manage the flush cmds (collect and dispatch), and one spin lock is used to protect this. In fact, the lock-less list(llist) is very suitable to this case, and we use simplify this routine. - v2: -use llist_for_each_entry_safe to fix possible use-after-free issue. -remove the unused field from struct flush_cmd. Thanks for Yu's suggestion. - Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-09-09f2fs: refactor flush_sit_entries codes for reducing SIT writesChao Yu
In commit aec71382c681 ("f2fs: refactor flush_nat_entries codes for reducing NAT writes"), we descripte the issue as below: "Although building NAT journal in cursum reduce the read/write work for NAT block, but previous design leave us lower performance when write checkpoint frequently for these cases: 1. if journal in cursum has already full, it's a bit of waste that we flush all nat entries to page for persistence, but not to cache any entries. 2. if journal in cursum is not full, we fill nat entries to journal util journal is full, then flush the left dirty entries to disk without merge journaled entries, so these journaled entries may be flushed to disk at next checkpoint but lost chance to flushed last time." Actually, we have the same problem in using SIT journal area. In this patch, firstly we will update sit journal with dirty entries as many as possible. Secondly if there is no space in sit journal, we will remove all entries in journal and walk through the whole dirty entry bitmap of sit, accounting dirty sit entries located in same SIT block to sit entry set. All entry sets are linked to list sit_entry_set in sm_info, sorted ascending order by count of entries in set. Later we flush entries in set which have fewest entries into journal as many as we can, and then flush dense set with merged entries to disk. In this way we can use sit journal area more effectively, also we will reduce SIT update, result in gaining in performance and saving lifetime of flash device. In my testing environment, it shows this patch can help to reduce SIT block update obviously. virtual machine + hard disk: fsstress -p 20 -n 400 -l 5 sit page num cp count sit pages/cp based 2006.50 1349.75 1.486 patched 1566.25 1463.25 1.070 Our latency of merging op is small when handling a great number of dirty SIT entries in flush_sit_entries: latency(ns) dirty sit count 36038 2151 49168 2123 37174 2232 Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-09-09f2fs: remove unneeded sit_i in macro SIT_BLOCK_OFFSET/START_SEGNOChao Yu
sit_i in macro SIT_BLOCK_OFFSET/START_SEGNO is not used, remove it. Signed-off-by: Chao Yu <chao2.yu@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-09-09f2fs: need fsck.f2fs if the recovery was failedJaegeuk Kim
If the roll-forward recovery was failed, we'd better conduct fsck.f2fs. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-09-09f2fs: handle bug cases by letting fsck.f2fs initiateJaegeuk Kim
This patch adds to handle corner buggy cases for fsck.f2fs. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-09-09f2fs: add BUG cases to initiate fsck.f2fsJaegeuk Kim
This patch replaces BUG cases with f2fs_bug_on to remain fsck.f2fs information. And it implements some void functions to initiate fsck.f2fs too. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-09-09f2fs: need fsck.f2fs when f2fs_bug_on is triggeredJaegeuk Kim
If any f2fs_bug_on is triggered, fsck.f2fs is needed. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2014-09-09f2fs: retain inconsistency information to initiate fsck.f2fsJaegeuk Kim
This patch adds sbi->need_fsck to conduct fsck.f2fs later. This flag can only be removed by fsck.f2fs. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>