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author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-05 19:22:07 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-11-05 19:22:07 (GMT) |
commit | 0fcb9d21b4e18ede3727b8905e74acd0d1daef56 (patch) | |
tree | f8181c110c8bed5b6322122ba086f34bbfb269f9 /fs/f2fs/super.c | |
parent | d000f8d67f2bb464c9cf4fb5103f78d8cb406c05 (diff) | |
parent | beaa57dd986d4f398728c060692fc2452895cfd8 (diff) | |
download | linux-0fcb9d21b4e18ede3727b8905e74acd0d1daef56.tar.xz |
Merge tag 'for-f2fs-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"Most part of the patches include enhancing the stability and
performance of in-memory extent caches feature.
In addition, it introduces several new features and configurable
points:
- F2FS_GOING_DOWN_METAFLUSH ioctl to test power failures
- F2FS_IOC_WRITE_CHECKPOINT ioctl to trigger checkpoint by users
- background_gc=sync mount option to do gc synchronously
- periodic checkpoints
- sysfs entry to control readahead blocks for free nids
And the following bug fixes have been merged.
- fix SSA corruption by collapse/insert_range
- correct a couple of gc behaviors
- fix the results of f2fs_map_blocks
- fix error case handling of volatile/atomic writes"
* tag 'for-f2fs-4.4' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (54 commits)
f2fs: fix to skip shrinking extent nodes
f2fs: fix error path of ->symlink
f2fs: fix to clear GCed flag for atomic written page
f2fs: don't need to submit bio on error case
f2fs: fix leakage of inmemory atomic pages
f2fs: refactor __find_rev_next_{zero}_bit
f2fs: support fiemap for inline_data
f2fs: flush dirty data for bmap
f2fs: relocate the tracepoint for background_gc
f2fs crypto: fix racing of accessing encrypted page among
f2fs: export ra_nid_pages to sysfs
f2fs: readahead for free nids building
f2fs: support lower priority asynchronous readahead in ra_meta_pages
f2fs: don't tag REQ_META for temporary non-meta pages
f2fs: add a tracepoint for f2fs_read_data_pages
f2fs: set GFP_NOFS for grab_cache_page
f2fs: fix SSA updates resulting in corruption
Revert "f2fs: do not skip dentry block writes"
f2fs: add F2FS_GOING_DOWN_METAFLUSH to test power-failure
f2fs: merge meta writes as many possible
...
Diffstat (limited to 'fs/f2fs/super.c')
-rw-r--r-- | fs/f2fs/super.c | 37 |
1 files changed, 31 insertions, 6 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c index f794781..3a65e01 100644 --- a/fs/f2fs/super.c +++ b/fs/f2fs/super.c @@ -213,8 +213,10 @@ F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, ipu_policy, ipu_policy); F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_ipu_util, min_ipu_util); F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, min_fsync_blocks, min_fsync_blocks); F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ram_thresh, ram_thresh); +F2FS_RW_ATTR(NM_INFO, f2fs_nm_info, ra_nid_pages, ra_nid_pages); F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, max_victim_search, max_victim_search); F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, dir_level, dir_level); +F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, cp_interval, cp_interval); #define ATTR_LIST(name) (&f2fs_attr_##name.attr) static struct attribute *f2fs_attrs[] = { @@ -231,6 +233,8 @@ static struct attribute *f2fs_attrs[] = { ATTR_LIST(max_victim_search), ATTR_LIST(dir_level), ATTR_LIST(ram_thresh), + ATTR_LIST(ra_nid_pages), + ATTR_LIST(cp_interval), NULL, }; @@ -292,11 +296,16 @@ static int parse_options(struct super_block *sb, char *options) if (!name) return -ENOMEM; - if (strlen(name) == 2 && !strncmp(name, "on", 2)) + if (strlen(name) == 2 && !strncmp(name, "on", 2)) { set_opt(sbi, BG_GC); - else if (strlen(name) == 3 && !strncmp(name, "off", 3)) + clear_opt(sbi, FORCE_FG_GC); + } else if (strlen(name) == 3 && !strncmp(name, "off", 3)) { clear_opt(sbi, BG_GC); - else { + clear_opt(sbi, FORCE_FG_GC); + } else if (strlen(name) == 4 && !strncmp(name, "sync", 4)) { + set_opt(sbi, BG_GC); + set_opt(sbi, FORCE_FG_GC); + } else { kfree(name); return -EINVAL; } @@ -631,10 +640,14 @@ static int f2fs_show_options(struct seq_file *seq, struct dentry *root) { struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb); - if (!f2fs_readonly(sbi->sb) && test_opt(sbi, BG_GC)) - seq_printf(seq, ",background_gc=%s", "on"); - else + if (!f2fs_readonly(sbi->sb) && test_opt(sbi, BG_GC)) { + if (test_opt(sbi, FORCE_FG_GC)) + seq_printf(seq, ",background_gc=%s", "sync"); + else + seq_printf(seq, ",background_gc=%s", "on"); + } else { seq_printf(seq, ",background_gc=%s", "off"); + } if (test_opt(sbi, DISABLE_ROLL_FORWARD)) seq_puts(seq, ",disable_roll_forward"); if (test_opt(sbi, DISCARD)) @@ -742,6 +755,7 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data) int err, active_logs; bool need_restart_gc = false; bool need_stop_gc = false; + bool no_extent_cache = !test_opt(sbi, EXTENT_CACHE); sync_filesystem(sb); @@ -767,6 +781,14 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data) if (f2fs_readonly(sb) && (*flags & MS_RDONLY)) goto skip; + /* disallow enable/disable extent_cache dynamically */ + if (no_extent_cache == !!test_opt(sbi, EXTENT_CACHE)) { + err = -EINVAL; + f2fs_msg(sbi->sb, KERN_WARNING, + "switch extent_cache option is not allowed"); + goto restore_opts; + } + /* * We stop the GC thread if FS is mounted as RO * or if background_gc = off is passed in mount @@ -996,6 +1018,7 @@ static void init_sb_info(struct f2fs_sb_info *sbi) atomic_set(&sbi->nr_pages[i], 0); sbi->dir_level = DEF_DIR_LEVEL; + sbi->cp_interval = DEF_CP_INTERVAL; clear_sbi_flag(sbi, SBI_NEED_FSCK); INIT_LIST_HEAD(&sbi->s_list); @@ -1332,6 +1355,8 @@ try_onemore: f2fs_commit_super(sbi, true); } + sbi->cp_expires = round_jiffies_up(jiffies); + return 0; free_kobj: |