diff options
author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-09-12 11:14:33 -0400 |
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committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2012-09-12 11:14:33 -0400 |
commit | 25a765b7f05cb8460fa01b54568894b20e184862 (patch) | |
tree | 0b56db57b4d9f912393ab303c269e0fe6cdf8635 /fs/affs/super.c | |
parent | 9d2be9287107695708e6aae5105a8a518a6cb4d0 (diff) | |
parent | 64282278989d5b0398dcb3ba7904cb00c621dc35 (diff) |
Merge branch 'x86/platform' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into stable/for-linus-3.7
* 'x86/platform' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (9690 commits)
x86: Document x86_init.paging.pagetable_init()
x86: xen: Cleanup and remove x86_init.paging.pagetable_setup_done()
x86: Move paging_init() call to x86_init.paging.pagetable_init()
x86: Rename pagetable_setup_start() to pagetable_init()
x86: Remove base argument from x86_init.paging.pagetable_setup_start
Linux 3.6-rc5
HID: tpkbd: work even if the new Lenovo Keyboard driver is not configured
Remove user-triggerable BUG from mpol_to_str
xen/pciback: Fix proper FLR steps.
uml: fix compile error in deliver_alarm()
dj: memory scribble in logi_dj
Fix order of arguments to compat_put_time[spec|val]
xen: Use correct masking in xen_swiotlb_alloc_coherent.
xen: fix logical error in tlb flushing
xen/p2m: Fix one-off error in checking the P2M tree directory.
powerpc: Don't use __put_user() in patch_instruction
powerpc: Make sure IPI handlers see data written by IPI senders
powerpc: Restore correct DSCR in context switch
powerpc: Fix DSCR inheritance in copy_thread()
powerpc: Keep thread.dscr and thread.dscr_inherit in sync
...
Diffstat (limited to 'fs/affs/super.c')
-rw-r--r-- | fs/affs/super.c | 68 |
1 files changed, 44 insertions, 24 deletions
diff --git a/fs/affs/super.c b/fs/affs/super.c index 0782653a05a2..c70f1e5fc024 100644 --- a/fs/affs/super.c +++ b/fs/affs/super.c @@ -17,6 +17,7 @@ #include <linux/magic.h> #include <linux/sched.h> #include <linux/slab.h> +#include <linux/writeback.h> #include "affs.h" extern struct timezone sys_tz; @@ -25,15 +26,17 @@ static int affs_statfs(struct dentry *dentry, struct kstatfs *buf); static int affs_remount (struct super_block *sb, int *flags, char *data); static void -affs_commit_super(struct super_block *sb, int wait, int clean) +affs_commit_super(struct super_block *sb, int wait) { struct affs_sb_info *sbi = AFFS_SB(sb); struct buffer_head *bh = sbi->s_root_bh; struct affs_root_tail *tail = AFFS_ROOT_TAIL(sb, bh); - tail->bm_flag = cpu_to_be32(clean); + lock_buffer(bh); secs_to_datestamp(get_seconds(), &tail->disk_change); affs_fix_checksum(sb, bh); + unlock_buffer(bh); + mark_buffer_dirty(bh); if (wait) sync_dirty_buffer(bh); @@ -45,9 +48,7 @@ affs_put_super(struct super_block *sb) struct affs_sb_info *sbi = AFFS_SB(sb); pr_debug("AFFS: put_super()\n"); - if (!(sb->s_flags & MS_RDONLY) && sb->s_dirt) - affs_commit_super(sb, 1, 1); - + cancel_delayed_work_sync(&sbi->sb_work); kfree(sbi->s_prefix); affs_free_bitmap(sb); affs_brelse(sbi->s_root_bh); @@ -55,26 +56,43 @@ affs_put_super(struct super_block *sb) sb->s_fs_info = NULL; } -static void -affs_write_super(struct super_block *sb) +static int +affs_sync_fs(struct super_block *sb, int wait) { - lock_super(sb); - if (!(sb->s_flags & MS_RDONLY)) - affs_commit_super(sb, 1, 2); - sb->s_dirt = 0; - unlock_super(sb); + affs_commit_super(sb, wait); + return 0; +} + +static void flush_superblock(struct work_struct *work) +{ + struct affs_sb_info *sbi; + struct super_block *sb; + + sbi = container_of(work, struct affs_sb_info, sb_work.work); + sb = sbi->sb; - pr_debug("AFFS: write_super() at %lu, clean=2\n", get_seconds()); + spin_lock(&sbi->work_lock); + sbi->work_queued = 0; + spin_unlock(&sbi->work_lock); + + affs_commit_super(sb, 1); } -static int -affs_sync_fs(struct super_block *sb, int wait) +void affs_mark_sb_dirty(struct super_block *sb) { - lock_super(sb); - affs_commit_super(sb, wait, 2); - sb->s_dirt = 0; - unlock_super(sb); - return 0; + struct affs_sb_info *sbi = AFFS_SB(sb); + unsigned long delay; + + if (sb->s_flags & MS_RDONLY) + return; + + spin_lock(&sbi->work_lock); + if (!sbi->work_queued) { + delay = msecs_to_jiffies(dirty_writeback_interval * 10); + queue_delayed_work(system_long_wq, &sbi->sb_work, delay); + sbi->work_queued = 1; + } + spin_unlock(&sbi->work_lock); } static struct kmem_cache * affs_inode_cachep; @@ -138,7 +156,6 @@ static const struct super_operations affs_sops = { .write_inode = affs_write_inode, .evict_inode = affs_evict_inode, .put_super = affs_put_super, - .write_super = affs_write_super, .sync_fs = affs_sync_fs, .statfs = affs_statfs, .remount_fs = affs_remount, @@ -305,8 +322,11 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent) return -ENOMEM; sb->s_fs_info = sbi; + sbi->sb = sb; mutex_init(&sbi->s_bmlock); spin_lock_init(&sbi->symlink_lock); + spin_lock_init(&sbi->work_lock); + INIT_DELAYED_WORK(&sbi->sb_work, flush_superblock); if (!parse_options(data,&uid,&gid,&i,&reserved,&root_block, &blocksize,&sbi->s_prefix, @@ -531,6 +551,7 @@ affs_remount(struct super_block *sb, int *flags, char *data) return -EINVAL; } + flush_delayed_work_sync(&sbi->sb_work); replace_mount_options(sb, new_opts); sbi->s_flags = mount_flags; @@ -549,10 +570,9 @@ affs_remount(struct super_block *sb, int *flags, char *data) if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY)) return 0; - if (*flags & MS_RDONLY) { - affs_write_super(sb); + if (*flags & MS_RDONLY) affs_free_bitmap(sb); - } else + else res = affs_init_bitmap(sb, flags); return res; |