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- 12 Feb, 2015 13 commits
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Chao Yu authored
Currently, there are several variables with Boolean type as below: struct f2fs_sb_info { ... int s_dirty; bool need_fsck; bool s_closing; ... bool por_doing; ... } For this there are some issues: 1. there are some space of f2fs_sb_info is wasted due to aligning after Boolean type variables by compiler. 2. if we continuously add new flag into f2fs_sb_info, structure will be messed up. So in this patch, we try to: 1. switch s_dirty to Boolean type variable since it has two status 0/1. 2. merge s_dirty/need_fsck/s_closing/por_doing variables into s_flag. 3. introduce an enum type which can indicate different states of sbi. 4. use new introduced universal interfaces is_sbi_flag_set/{set,clear}_sbi_flag to operate flags for sbi. After that, above issues will be fixed. Signed-off-by:Chao Yu <chao2.yu@samsung.com> Signed-off-by:
Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
Use pointer parameter @wait to pass result in {in,de}create_sleep_time for cleanup. Signed-off-by: -
Chao Yu authored
1. make truncate_inline_date static; 2. remove parameter @from of truncate_inline_date as callers only pass zero. Signed-off-by:
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Kinglong Mee authored
Introduced by a6dda0e6 "f2fs: use generic posix ACL infrastructure". When testing default acl, gets in recent kernel (3.19.0-rc5), user::rwx group::r-x other::r-x default:user::rwx default:group::r-x default:group:root:rwx default:mask::rwx default:other::r-x ]# getfacl testdir/ user::rwx group::rwx // missing an acl "group:root:rwx" inherited from parent other::r-x default:user::rwx default:group::r-x default:group:root:rwx default:mask::rwx default:other::r-x Signed-off-by:
Kinglong Mee <kinglongmee@gmail.com> Reviewed-by:
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Chao Yu authored
No modification in functionality, just clean codes with f2fs_radix_tree_insert. Signed-off-by:
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Chao Yu authored
In this patch we add the FS_IOC_GETVERSION ioctl for getting i_generation from inode, after that, users can list file's generation number by using "lsattr -v". Signed-off-by:
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Jaegeuk Kim authored
During the recovery, any xattr blocks should not be found, since they are written into cold log, not the warm node chain. Reviewed-by:
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Chao Yu authored
We will encounter deadloop in below scenario: 1. increase page count for F2FS_DIRTY_META type in following path: ->recover_fsync_data ->recover_data ->do_recover_data ->recover_data_page ->change_curseg ->write_sum_page ->set_page_dirty 2. fail in recover_data() 3. invalidate meta pages in truncate_inode_pages_final without decreasing page count. 4. deadloop when sync_meta_pages as page count will always be non-zero. message: NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [<c1129a37>] pagevec_lookup_tag+0x27/0x30 [<f0e774c7>] sync_meta_pages+0x87/0x160 [f2fs] [<f0e86dd9>] recover_fsync_data+0xeb9/0xf10 [f2fs] [<f0e75398>] f2fs_fill_super+0x888/0x980 [f2fs] [<c11733ca>] mount_bdev+0x16a/0x1a0 [<f0e7180f>] f2fs_mount+0x1f/0x30 [f2fs] [<c1173da6>] mount_fs+0x36/0x170 [<c118b6f5>] vfs_kern_mount+0x55/0xe0 [<c118d63f>] do_mount+0x1df/0x9f0 [<c118e110>] SyS_mount+0x70/0xb0 [<c15a0c48>] sysenter_do_call+0x12/0x12 To avoid page count leak, let's add ->invalidatepage and ->releasepage in f2fs_meta_aops as f2fs_node_aops to release meta page count correctly. Signed-off-by: -
Jaegeuk Kim authored
If the previous checkpoint was done without CP_UMOUNT flag, it needs to do checkpoint with CP_UMOUNT for the next fast boot. Reviewed-by:
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Jaegeuk Kim authored
This patch fixes to trigger checkpoint with umount flag when kill_sb was called. In kill_sb, f2fs_sync_fs was finally called, but at this time, f2fs can't do checkpoint with CP_UMOUNT. After then, f2fs_put_super is not doing checkpoint, since it is not dirty. So, this patch adds a flag to indicate f2fs_sync_fs is called during umount. Reviewed-by:
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Jaegeuk Kim authored
This patch adds missing memory usages, and splits them in detail. Signed-off-by: -
Chao Yu authored
Our value of memory footprint statistics showed in debugfs is not calculated correctly. Fix it in this patch. Signed-off-by:
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Jaegeuk Kim authored
If cp_error is set, we should avoid all the infinite loop. In f2fs_sync_file, there is a hole, and this patch fixes that. Signed-off-by:
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- 10 Jan, 2015 27 commits
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kbuild test robot authored
fs/f2fs/trace.c:19:12: sparse: symbol 'pids_lock' was not declared. Should it be static? Signed-off-by:
Fengguang Wu <fengguang.wu@intel.com> Signed-off-by:
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Jaegeuk Kim authored
This patch removes radix tree after finishing tracing IOs. Signed-off-by: -
Jaegeuk Kim authored
This patch adds spin_lock to cover radix tree operations in IO tracer. Signed-off-by: -
Jaegeuk Kim authored
This patch adds NAT/SIT entry informations. Signed-off-by: -
Jaegeuk Kim authored
In the normal case, the radix_tree_nodes are freed successfully. But, when cp_error was detected, we should destroy them forcefully. Signed-off-by: -
Jaegeuk Kim authored
This patch removes wrongly called unlock_page. Signed-off-by: -
Chao Yu authored
We use kzalloc to allocate memory in __recover_inline_status, and use this all-zero memory to check the inline date content of inode page by comparing them. This is low effective and not needed, let's check inline date content directly. Signed-off-by:
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Jaegeuk Kim authored
This patch aligns the start block address of a file for direct io to the f2fs's section size. Some flash devices manage an over 4KB-sized page as a write unit, and if the direct_io'ed data are written but not aligned to that unit, the performance can be degraded due to the partial page copies. Thus, since f2fs has a section that is well aligned to FTL units, we can align the block address to the section size so that f2fs avoids this misalignment. Signed-off-by: -
Jaegeuk Kim authored
This patch removes unnecessary function calls. Signed-off-by: -
Jaegeuk Kim authored
This patch relocates some operations to avoid unnecessary execution. Signed-off-by: -
Jaegeuk Kim authored
This patch uses dn->data_blkaddr as a parameter for the destination block address. Signed-off-by: -
Chao Yu authored
There are two slab cache inode_entry_slab and winode_slab using the same structure as below: struct dir_inode_entry { struct list_head list; /* list head */ struct inode *inode; /* vfs inode pointer */ }; struct inode_entry { struct list_head list; struct inode *inode; }; It's a little waste that the two cache can not share their memory space for each other. So in this patch we remove one redundant winode_slab slab cache, then use more universal name struct inode_entry as remaining data structure name of slab, finally we reuse the inode_entry_slab to store dirty dir item and gc item for more effective. Signed-off-by: -
Chao Yu authored
Cleanup parameters for trace_f2fs_submit_{read_,write_,page_,page_m}bio with fio as one parameter. Suggested-by: -
Chao Yu authored
This patch adds missing parameter _type_ for trace_f2fs_submit_page_bio, then use DECLARE_EVENT_CLASS/DEFINE_EVENT_CONDITION pair to cleanup some trace event code related to f2fs_submit_page_{m,}bio. Additionally, after we remove redundant code, size of code can be reduced: text data bss dec hex filename 176787 8712 56 185555 2d4d3 f2fs.ko.org 174408 8648 56 183112 2cb48 f2fs.ko Signed-off-by: -
Jaegeuk Kim authored
In do_recover_data, we find and update previous node pages after updating its new block addresses. After then, we call fill_node_footer without reset field, we erase its cold bit so that this new cold node block is written to wrong log area. This patch fixes not to miss its old flag. Signed-off-by: -
Changman Lee authored
This patch adds block count by in-place-update in stat. Signed-off-by:
Changman Lee <cm224.lee@samsung.com> Reviewed-by:
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Jaegeuk Kim authored
The __f2fs_add_link is covered by cp_rwsem all the time. This calls init_inode_metadata, which conducts some acl operations including memory allocation with GFP_KERNEL previously. But, under memory pressure, f2fs_write_data_page can be called, which also grabs cp_rwsem too. In this case, this incurs a deadlock pointed by Chao. Thread #1 Thread #2 down_read down_write down_read -> here down_read should wait forever. Reviewed-by: -
Jaegeuk Kim authored
This patch activates f2fs_trace_ios. Signed-off-by: -
Jaegeuk Kim authored
This patch activates f2fs_trace_pid. Signed-off-by: -
Jaegeuk Kim authored
This patch adds two key functions to trace process ids and IOs. The basic idea is to 1. remain process ids, pids, in page->private. 2. show pids in IO traces. So, later we can retrieve process information according to IO traces. Signed-off-by: -
Jaegeuk Kim authored
This patch adds: o initial trace.c and trace.h with skeleton functions o Kconfig and Makefile to activate this feature Signed-off-by: -
Jaegeuk Kim authored
This patch cleans up parameters on IO paths. The key idea is to use f2fs_io_info adding a parameter, block address, and then use this structure as parameters. Reviewed-by:
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Chao Yu authored
Use more common function ra_meta_pages() with META_POR to readahead node blocks in restore_node_summary() instead of ra_sum_pages(), hence we can simplify the readahead code there, and also we can remove unused function ra_sum_pages(). changes from v2: o use invalidate_mapping_pages as before suggested by Changman Lee. changes from v1: o fix one bug when using truncate_inode_pages_range which is pointed out by Jaegeuk Kim. Reviewed-by:
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Chao Yu authored
This patch moves one member of struct nat_entry: _flag_ to struct node_info, so _version_ in struct node_info and _flag_ which are unsigned char type will merge to one 32-bit space in register/memory. So the size of nat_entry will be reduced from 28 bytes to 24 bytes (for 64-bit machine, reduce its size from 40 bytes to 32 bytes) and then slab memory using by f2fs will be reduced. changes from v2: o update description of memory usage gain for 64-bit machine suggested by Changman Lee. changes from v1: o introduce inline copy_node_info() to copy valid data from node info suggested by Jaegeuk Kim, it can avoid bug. Reviewed-by:
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Chao Yu authored
Let's add readahead code for reading contiguous compact/normal summary blocks in checkpoint, then we will gain better performance in mount procedure. Changes from v1 o remove inappropriate 'unlikely' in npages_for_summary_flush. Signed-off-by:
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Jaegeuk Kim authored
This patch calls f2fs_kunmap_page which I missed before. Signed-off-by: -
Jaegeuk Kim authored
Now we use inmemory pages for atomic write only and provide abort procedure, we don't need to truncate them explicitly. Signed-off-by:
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