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f2fs: Squash commits from f2fs-stable
f2fs: report error of f2fs_create_root_stats f2fs_create_root_stats can fail due to no memory, report it to user. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: commit atomic written page in LFS mode We should always commit atomic written pages in LFS mode, otherwise data will become corrupted if we encounter suddent power cut after partial pages committed in IPU mode. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: support file defragment This patch introduces a new ioctl F2FS_IOC_DEFRAGMENT to support file defragment in a specified range of regular file. This ioctl can be used in very limited workload: if user expects high sequential read performance in randomly written file, this interface can be used for defragmentation, after that file can be written as continuous as possible in the device. Meanwhile, it has side-effect, it will make holes in segments where blocks located originally, so it's better to trigger GC to eliminate fragment in segments. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: fix memory leak of kobject in error path of fill_super f2fs_sb_info::s_kobj should be released in error path of fill_super, otherwise it will lead to memory leak. This bug was found by kmemleak: dmesg: kmemleak: 2 new suspected memory leaks (see /sys/kernel/debug/kmemleak) cat /sys/kernel/debug/kmemleak unreferenced object 0xffff8800838dc358 (size 8): comm "mount", pid 4154, jiffies 4297482839 (age 1911.412s) hex dump (first 8 bytes): 7a 72 61 6d 31 00 ff ff zram1... backtrace: [<ffffffff817a3668>] kmemleak_alloc+0x28/0x50 [<ffffffff811dc99f>] __kmalloc_track_caller+0xef/0x1c0 [<ffffffff8119d1c5>] kstrdup+0x45/0x80 [<ffffffff8119d228>] kstrdup_const+0x28/0x30 [<ffffffff813d2333>] kvasprintf_const+0x63/0xa0 [<ffffffff813c59fc>] kobject_set_name_vargs+0x3c/0xa0 [<ffffffff813c5a85>] kobject_add_varg+0x25/0x60 [<ffffffff813c5b13>] kobject_init_and_add+0x53/0x70 [<ffffffffa07ced19>] f2fs_fill_super+0x9d9/0xc40 [f2fs] [<ffffffff811ff0b2>] mount_bdev+0x192/0x1d0 [<ffffffffa07cd3e5>] f2fs_mount+0x15/0x20 [f2fs] [<ffffffff811fec93>] mount_fs+0x43/0x170 [<ffffffff81220256>] vfs_kern_mount+0x76/0x160 [<ffffffff812211c8>] do_mount+0x258/0xdc0 [<ffffffff81221dab>] SyS_mount+0x7b/0xc0 [<ffffffff817aecd7>] entry_SYSCALL_64_fastpath+0x12/0x6f ... Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: fix to enable missing ioctl interfaces in ->compat_ioctl In 64-bit kernel f2fs can supports 32-bit ioctl system call by identifying encoded code which is converted from 32-bit one to 64-bit one in ->compat_ioctl. When we introduced new interfaces in ->ioctl, we forgot to enable them in ->compat_ioctl, so enable them for fixing. Signed-off-by: Chao Yu <[email protected]> [Jaegeuk Kim: fix wrongly added spaces together] Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: fix to remove directory inode from dirty list If last dirty dentry page was writebacked in reclaim path, we should remove its directory inode from global dirty list to avoid unnecessary flush for this inode when doing checkpoint. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: optimize __find_rev_next_bit 1. Skip __reverse_ulong if the bitmap is empty. 2. Reduce branches and codes. According to my test, the performance of this new version is 5% higher on an empty bitmap of 64bytes, and remains about the same in the worst scenario. Signed-off-by: Fan li <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: clear page uptodate when dropping cache for atomic write We should clear uptodate flag for all pages atomic written when we drop them, otherwise before these cached pages were reclaimed or invalidated eventually, we will see invalid data when hitting them again. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: fix to report error in f2fs_readdir get_lock_data_page in f2fs_readdir can fail due to a lot of reasons (i.e. no memory or IO error...), it's better to report this kind of error to user rather than ignoring it. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: avoid deadlock in f2fs_shrink_extent_tree While handling extent trees, we can enter into a reclaiming path anytime. If it tries to release some extent nodes in the same extent tree, write_lock(&et->lock) would be hanged. In order to avoid the deadlock, we can just skip it. Note that, if it is an unreferenced tree, we should get write_lock(&et->lock) successfully and release all of therein nodes. Reviewed-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: do not recover from previous remained wrong dnodes If device does not support discard, some obsolete dnodes can be recovered by roll-forward. This patch enhances the recovery flow. Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: clean up error path in f2fs_readdir No logic changes, just clean up the error path. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> Conflicts: fs/f2fs/dir.c f2fs: clean up code with __has_cursum_space Clean up codes in lookup_journal_in_cursum() with __has_cursum_space(). Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: clean up argument of recover_data In recover_data, value of argument 'type' will be CURSEG_WARM_NODE all the time, remove it for cleanup. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: kill f2fs_drop_largest_extent For direct IO, f2fs only allocate new address for the block which is not exist in the disk before, its mapping info should not exist in extent cache previously, so here we do not need to call f2fs_drop_largest_extent to drop related cache. Due to no more callers for f2fs_drop_largest_extent now, kill it. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: use sbi->blocks_per_seg to avoid unnecessary calculation Use sbi->blocks_per_seg directly to avoid unnecessary calculation when using 1 << sbi->log_blocks_per_seg. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: fix to convert inline inode in ->setattr In commit 3c4541452748 ("f2fs: do not trim preallocated blocks when truncating after i_size"), in order to follow the regulation: "truncate(x) where x > i_size will not trim all blocks past i_size." like other file systems, in ->setattr we invoked truncate_setsize instead of f2fs_truncate to avoid unneeded block trimming in such case, but forgot to call f2fs_convert_inline_inode keep consistency of inline data conversion rule. This patch fixes to convert inline data if necessary. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: enhance the bit operation for SSR This patch enhances the existing bit operation when f2fs allocates SSR blocks. Reviewed-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: refactor f2fs_commit_super Previously, f2fs_commit_super hacks the bh->blocknr to write the broken alternate superblock. Instead of it, we should use the correct logic to retrieve its buffer head with locking it appropriately. Reviewed-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: use lock_buffer when changing superblock When modifying sb contents, we need to use lock its buffer. Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: clean up node page updating flow If read_node_page return LOCKED_PAGE, in its caller it's better a) skip unneeded 'Update' flag and mapping info verfication; b) check nid value stored in footer structure of node page. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> Conflicts: fs/f2fs/node.c f2fs: write only the pages in range during defragment @LenD of filemap_write_and_wait_range is supposed to be a "offset in bytes where the range ends (inclusive)". Subtract 1 to avoid writing an extra page. Signed-off-by: Fan li <[email protected]> Reviewed-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: fix to update variable correctly when skip a unmapped block map.m_len should be reduced after skip a block Signed-off-by: Fan li <[email protected]> Reviewed-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: do more integrity verification for superblock Do more sanity check for superblock during ->mount. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: add symbol to avoid any confusion with tools This patch adds MAX_VOLUME_NAME to sync with f2fs-tools. Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: rename {add,remove,release}_dirty_inode to {add,remove,release}_ino_entry remove_dirty_dir_inode will be renamed to remove_dirty_inode as a generic function in following patch for removing directory/regular/symlink inode in global dirty list. Here rename ino management related functions for readability, also in order to avoid name conflict. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: introduce dirty list node in inode info Add a new dirt list node member in inode info for linking the inode to global dirty list in superblock, instead of old implementation which allocate slab cache memory as an entry to inode. It avoids memory pressure due to slab cache allocation, and also makes codes more clean. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: introduce __remove_dirty_inode Introduce __remove_dirty_inode to clean up codes in remove_dirty_dir_inode. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: fix to reset variable correctlly f2fs_map_blocks will set m_flags and m_len to 0, so we don't need to reset m_flags ourselves, but have to reset m_len to correct value before use it again. Signed-off-by: Fan li <[email protected]> Reviewed-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: backup raw_super in sbi f2fs use fields of f2fs_super_block struct directly in a grabbed buffer. Once the buffer happen to be destroyed (e.g. through dd), it may bring in unpredictable effect on f2fs. This patch fixes to allocate additional buffer to store datas of super block rather than using grabbed block buffer directly. Signed-off-by: Yunlei He <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: don't grab super block buffer header all the time We have already got one copy of valid super block in memory, do not grab buffer header of super block all the time. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: relocate tracepoint of write_checkpoint It needs to relocate its location to see exact trace logs. Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: introduce __f2fs_commit_super Introduce __f2fs_commit_super to include duplicated codes in f2fs_commit_super for cleanup. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: record dirty status of regular/symlink inode Maintain regular/symlink inode which has dirty pages in global dirty list and record their total dirty pages count like the way of handling directory inode. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: introduce new option for controlling data flush Add a new option 'data_flush' to enable data flush functionality. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> Conflicts: Documentation/filesystems/f2fs.txt f2fs: stat dirty regular/symlink inodes Add to stat dirty regular and symlink inode for showing in debugfs. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: support data flush in background Previously, when finishing a checkpoint, we have persisted all fs meta info including meta inode, node inode, dentry page of directory inode, so, after a sudden power cut, f2fs can recover from last checkpoint with full directory structure. But during checkpoint, we didn't flush dirty pages of regular and symlink inode, so such dirty datas still in memory will be lost in that moment of power off. In order to reduce the chance of lost data, this patch enables f2fs_balance_fs_bg with the ability of data flushing. It will try to flush user data before starting a checkpoint. So user's data written after last checkpoint which may not be fsynced could be saved. When we mount with data_flush option, after every period of cp_interval (could be configured in sysfs: /sys/fs/f2fs/device/cp_interval) seconds user data could be flushed into device once f2fs_balance_fs_bg was called in kworker thread or gc thread. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: optimize the flow of f2fs_map_blocks check map->m_len right after it changes to avoid excess call to update dnode_of_data. Signed-off-by: Fan li <[email protected]> Reviewed-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: add a tracepoint for sync_dirty_inodes This patch adds a tracepoint for sync_dirty_inodes. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: use atomic variable for total_extent_tree It would be better to use atomic variable for total_extent_tree. Reviewed-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: speed up shrinking extent tree entries If there is no candidates for shrinking slab entries, we don't need to traverse any trees at all. Reviewed-by: Chao Yu <[email protected]> [Jaegeuk Kim: fix missing initialization reported by Yunlei He] Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: check inline_data flag at converting time We can check inode's inline_data flag when calling to convert it. Reviewed-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: avoid unnecessary f2fs_gc for dir operations The f2fs_balance_fs doesn't need to cover f2fs_new_inode or f2fs_find_entry works. Reviewed-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> Conflicts: fs/f2fs/namei.c f2fs: record node block allocation in dnode_of_data This patch introduces recording node block allocation in dnode_of_data. This information helps to figure out whether any node block is allocated during specific file operations. Reviewed-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: reduce covered region of sbi->cp_rwsem in f2fs_map_blocks Only cover sbi->cp_rwsem on one dnode page's allocation and modification instead of multiple's in f2fs_map_blocks, it can reduce the covered region of cp_rwsem, then we can avoid potential long time delay for concurrent checkpointer. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: call f2fs_balance_fs only when node was changed If user tries to update or read data, we don't need to call f2fs_balance_fs which triggers f2fs_gc, which increases unnecessary long latency. Reviewed-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> Conflicts: fs/f2fs/file.c f2fs: report error of do_checkpoint do_checkpoint and write_checkpoint can fail due to reasons like triggering in a readonly fs or encountering IO error of storage device. So it's better to report such error info to user, let user be aware of failure of doing checkpoint. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: don't convert inline inode when inline_data option is disable If inline_data option is disable, when truncating an inline inode with size which is not exceed maxinum inline size, we should not convert inline inode to regular one to avoid the overhead of synchronizing conversion. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: introduce prepare_write_begin to clean up This patch adds prepare_write_begin to clean f2fs_write_begin. The major role of this function is to convert any inline_data and allocate or find block address. Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: return early when trying to read null nid If get_node_page() gets zero nid, we can return early without getting a wrong page. For example, get_dnode_of_data() can try to do that. Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: avoid f2fs_lock_op in f2fs_write_begin If f2fs_write_begin is to update data, we can bypass calling f2fs_lock_op() in order to avoid the checkpoint latency in the write syscall. Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: declare static function The __f2fs_commit_super is static. Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: add missing f2fs_balance_fs in __recover_dot_dentries __recover_do_dentries will try to grab free space in storage, so fix to add missing f2fs_balance_fs here. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: let user being aware of IO error Sometimes we keep dumb when IO error occur in lower layer device, so user will not receive any error return value for some operation, but actually, the operation did not succeed. This sould be avoided, so this patch reports such kind of error to user. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> Conflicts: fs/f2fs/data.c f2fs: fix bugs and simplify codes of f2fs_fiemap fix bugs: 1. len could be updated incorrectly when start+len is beyond isize. 2. If there is a hole consisting of more than two blocks, it could fail to add FIEMAP_EXTENT_LAST flag for the last extent. 3. If there is an extent beyond isize, when we search extents in a range that ends at isize, it will also return the extent beyond isize, which is outside the range. Signed-off-by: Fan li <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: add a max block check for get_data_block_bmap This patch adds a max block check for get_data_block_bmap. Trinity test program will send a block number as parameter into ioctl_fibmap, which will be used in get_node_path(), when the block number large than f2fs max blocks, it will trigger kernel bug. Signed-off-by: Yunlei He <[email protected]> Signed-off-by: Xue Liu <[email protected]> [Jaegeuk Kim: fix missing condition, pointed by Chao Yu] Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: clean up f2fs_ioc_write_checkpoint Use f2fs_sync_fs to clean up codes in f2fs_ioc_write_checkpoint. Signed-off-by: Chao Yu <[email protected]> [Jaegeuk Kim: remove unused err variable] Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: early check broken symlink length in the encrypted case If link is broken, its len is zero, and we don't need to move forward. Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: use i_size_read to get i_size We need to use i_size_read() to get inode->i_size. Signed-off-by: Jaegeuk Kim <[email protected]> Conflicts: fs/f2fs/data.c f2fs: load largest extent all the time Otherwise, we can get mismatched largest extent information. One example is: 1. mount f2fs w/ extent_cache 2. make a small extent 3. umount 4. mount f2fs w/o extent_cache 5. update the largest extent 6. umount 7. mount f2fs w/ extent_cache 8. get the old extent made by #2 Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: fix to skip recovering dot dentries in a readonly fs If filesystem is readonly, leave user message info instead of recovering inline dot inode. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: fix f2fs_ioc_abort_volatile_write There are two rules to handle aborting volatile or atomic writes. 1. drop atomic writes - we don't need to keep any stale db data. 2. write journal data - we should keep the journal data with fsync for db recovery. Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: remove f2fs_bug_on in terms of max_depth There is no report on this bug_on case, but if malicious attacker changed this field intentionally, we can just reset it as a MAX value. Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: write pending bios when cp_error is set When testing ioc_shutdown, put_super is able to be hanged by waiting for writebacking pages as follows. INFO: task umount:2723 blocked for more than 120 seconds. Tainted: G O 4.4.0-rc3+ #8 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. umount D ffff88000859f9d8 0 2723 2110 0x00000000 ffff88000859f9d8 0000000000000000 0000000000000000 ffffffff81e11540 ffff880078c225c0 ffff8800085a0000 ffff88007fc17440 7fffffffffffffff ffffffff818239f0 ffff88000859fb48 ffff88000859f9f0 ffffffff8182310c Call Trace: [<ffffffff818239f0>] ? bit_wait+0x50/0x50 [<ffffffff8182310c>] schedule+0x3c/0x90 [<ffffffff81827fb9>] schedule_timeout+0x2d9/0x430 [<ffffffff810e0f8f>] ? mark_held_locks+0x6f/0xa0 [<ffffffff8111614d>] ? ktime_get+0x7d/0x140 [<ffffffff818239f0>] ? bit_wait+0x50/0x50 [<ffffffff8106a655>] ? kvm_clock_get_cycles+0x25/0x30 [<ffffffff8111617c>] ? ktime_get+0xac/0x140 [<ffffffff818239f0>] ? bit_wait+0x50/0x50 [<ffffffff81822564>] io_schedule_timeout+0xa4/0x110 [<ffffffff81823a25>] bit_wait_io+0x35/0x50 [<ffffffff818235bd>] __wait_on_bit+0x5d/0x90 [<ffffffff811b9e8b>] wait_on_page_bit+0xcb/0xf0 [<ffffffff810d5f90>] ? autoremove_wake_function+0x40/0x40 [<ffffffff811cf84c>] truncate_inode_pages_range+0x4bc/0x840 [<ffffffff811cfc3d>] truncate_inode_pages_final+0x4d/0x60 [<ffffffffc023ced5>] f2fs_evict_inode+0x75/0x400 [f2fs] [<ffffffff812639bc>] evict+0xbc/0x190 [<ffffffff81263d19>] iput+0x229/0x2c0 [<ffffffffc0241885>] f2fs_put_super+0x105/0x1a0 [f2fs] [<ffffffff8124756a>] generic_shutdown_super+0x6a/0xf0 [<ffffffff812478f7>] kill_block_super+0x27/0x70 [<ffffffffc0241290>] kill_f2fs_super+0x20/0x30 [f2fs] [<ffffffff81247b03>] deactivate_locked_super+0x43/0x70 [<ffffffff81247f4c>] deactivate_super+0x5c/0x60 [<ffffffff81268d2f>] cleanup_mnt+0x3f/0x90 [<ffffffff81268dc2>] __cleanup_mnt+0x12/0x20 [<ffffffff810ac463>] task_work_run+0x73/0xa0 [<ffffffff810032ac>] exit_to_usermode_loop+0xcc/0xd0 [<ffffffff81003e7c>] syscall_return_slowpath+0xcc/0xe0 [<ffffffff81829ea2>] int_ret_from_sys_call+0x25/0x9f Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: use IPU for fdatasync This patch fixes missing IPU condition when fdatasync is called. With this patch, fdatasync is able to avoid additional node writes for recovery. Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: monitor zombie_tree count This patch adds an entry to show the number of zombie extent_tree. Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: introduce zombie list for fast shrinking extent trees This patch removes refcount, and instead, adds zombie_list to shrink directly without radix tree traverse. Signed-off-by: Jaegeuk Kim <[email protected]> f2fs crypto: check CONFIG_F2FS_FS_XATTR for encrypted symlink Add missed CONFIG_F2FS_FS_XATTR for encrypted symlink inode in order to avoid unneeded registry of ->{get,set,remove}xattr. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: introduce max_file_blocks in sbi Introduce max_file_blocks in sbi to store max block index of file in f2fs, it could be used to avoid unneeded calculation of max block index in runtime. Signed-off-by: Chao Yu <[email protected]> [Jaegeuk Kim: fix overflow of sbi->max_file_blocks] Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: cover more area with nat_tree_lock There was a subtle bug on nat cache management which incurs wrong nid allocation or wrong block addresses when try_to_free_nats is triggered heavily. This patch enlarges the previous coverage of nat_tree_lock to avoid data race. Signed-off-by: Jaegeuk Kim <[email protected]> Revert "f2fs: check the node block address of newly allocated nid" Original issue is fixed by: f2fs: cover more area with nat_tree_lock This reverts commit 24928634f81b1592e83b37dcd89ed45c28f12feb. f2fs: read isize while holding i_mutex in fiemap make sure the isize we read doesn't change during the process. Signed-off-by: Fan li <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: check node id earily when readaheading node page Add node id check in ra_node_page and get_node_page_ra like get_node_page. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: introduce __get_node_page to reuse common code There are duplicated code in between get_node_page and get_node_page_ra, introduce __get_node_page to includes common parts of these two, and export get_node_page and get_node_page_ra by reusing __get_node_page. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> Conflicts: fs/f2fs/node.c f2fs: check the page status filled from disk After reading a page, we need to check whether there is any error. Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: avoid unnecessary f2fs_balance_fs calls Only when node page is newly dirtied, it needs to check whether we need to do f2fs_gc. Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: remove redundant calls This patch removes redundant calls. Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: clean up f2fs_balance_fs This patch adds one parameter to clean up all the callers of f2fs_balance_fs. Signed-off-by: Jaegeuk Kim <[email protected]> Conflicts: fs/f2fs/namei.c f2fs: recognize encrypted data in f2fs_fiemap This patch fixes to teach f2fs_fiemap to recognize encrypted data. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: use atomic type for node count in extent tree 1. rename field in struct extent_tree from count to node_cnt for readability. 2. alter to use atomic type for node_cnt. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: skip releasing nodes in chindless extent tree If there are no nodes in extent tree, let's skip releasing step to avoid any overhead of grabbing/releasing extent tree lock. Signed-off-by: Chao Yu <[email protected]> Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: introduce time and interval facility This patch adds time and interval arrays to store some timing variables. Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: detect idle time depending on user behavior This patch adds last time that user requested filesystem operations. This information is used to detect whether system is idle or not later. Signed-off-by: Jaegeuk Kim <[email protected]> Conflicts: Documentation/ABI/testing/sysfs-fs-f2fs Change-Id: I978b33092a8554f5eb3dd1044a44ca6fd476331e f2fs: monitor the number of background checkpoint This patch adds to show the number of background checkpoint. Signed-off-by: Jaegeuk Kim <[email protected]> f2fs: fix wrong memory condition check This patch fixes wrong decision for avaliable_free_memory. The return valus is already set as false, so we should consider true condition below only. Signed-off-by: Jaegeuk Kim <[email protected]> Conflicts: fs/f2fs/node.c f2fs: should unset atomic flag after successful commit If there is an error during commit, we should keep the flag in order to abort it. Signed-off-by: Jaegeuk Kim <[email protected]>
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