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| author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2011-03-29 17:19:50 +0200 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2011-05-13 18:23:53 +0200 |
| commit | 8ff83089f8bcbd9a2e898b68f1a46487c8b6e38c (patch) | |
| tree | 36b286946894a4b797d850cca67603cac89ec1f2 /fs/ubifs | |
| parent | UBIFS: introduce a separate structure for budgeting info (diff) | |
| download | linux-8ff83089f8bcbd9a2e898b68f1a46487c8b6e38c.tar.xz linux-8ff83089f8bcbd9a2e898b68f1a46487c8b6e38c.zip | |
UBIFS: simplify dbg_dump_budg calling conventions
The current 'dbg_dump_budg()' calling convention is that the
'c->space_lock' spinlock is held. However, none of the callers
actually use it from contects which have 'c->space_lock' locked,
so all callers have to explicitely lock and unlock the spinlock.
This is not very sensible convention. This patch changes it and
makes 'dbg_dump_budg()' lock the spinlock instead of imposing this
to the callers. This simplifies the code a little.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'fs/ubifs')
| -rw-r--r-- | fs/ubifs/debug.c | 12 | ||||
| -rw-r--r-- | fs/ubifs/journal.c | 2 | ||||
| -rw-r--r-- | fs/ubifs/tnc_commit.c | 2 |
3 files changed, 4 insertions, 12 deletions
diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c index c58867cbd019..aad4fb80d187 100644 --- a/fs/ubifs/debug.c +++ b/fs/ubifs/debug.c @@ -610,7 +610,7 @@ void dbg_dump_budg(struct ubifs_info *c) struct ubifs_gced_idx_leb *idx_gc; long long available, outstanding, free; - ubifs_assert(spin_is_locked(&c->space_lock)); + spin_lock(&c->space_lock); spin_lock(&dbg_lock); printk(KERN_DEBUG "(pid %d) Budgeting info: budg_data_growth %lld, " "budg_dd_growth %lld, budg_idx_growth %lld\n", current->pid, @@ -655,6 +655,7 @@ void dbg_dump_budg(struct ubifs_info *c) printk(KERN_DEBUG "\tavailable: %lld, outstanding %lld, free %lld\n", available, outstanding, free); spin_unlock(&dbg_lock); + spin_unlock(&c->space_lock); } void dbg_dump_lprop(const struct ubifs_info *c, const struct ubifs_lprops *lp) @@ -1046,10 +1047,7 @@ out: ubifs_msg("current lprops statistics dump"); dbg_dump_lstats(&lst); - - spin_lock(&c->space_lock); dbg_dump_budg(c); - spin_unlock(&c->space_lock); dump_stack(); return -EINVAL; } @@ -2796,11 +2794,9 @@ static ssize_t write_debugfs_file(struct file *file, const char __user *buf, if (file->f_path.dentry == d->dfs_dump_lprops) dbg_dump_lprops(c); - else if (file->f_path.dentry == d->dfs_dump_budg) { - spin_lock(&c->space_lock); + else if (file->f_path.dentry == d->dfs_dump_budg) dbg_dump_budg(c); - spin_unlock(&c->space_lock); - } else if (file->f_path.dentry == d->dfs_dump_tnc) { + else if (file->f_path.dentry == d->dfs_dump_tnc) { mutex_lock(&c->tnc_mutex); dbg_dump_tnc(c); mutex_unlock(&c->tnc_mutex); diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c index aed25e864227..65d485fc1eeb 100644 --- a/fs/ubifs/journal.c +++ b/fs/ubifs/journal.c @@ -380,10 +380,8 @@ out: if (err == -ENOSPC) { /* This are some budgeting problems, print useful information */ down_write(&c->commit_sem); - spin_lock(&c->space_lock); dbg_dump_stack(); dbg_dump_budg(c); - spin_unlock(&c->space_lock); dbg_dump_lprops(c); cmt_retries = dbg_check_lprops(c); up_write(&c->commit_sem); diff --git a/fs/ubifs/tnc_commit.c b/fs/ubifs/tnc_commit.c index 9c376b9e74ff..66f066de2c57 100644 --- a/fs/ubifs/tnc_commit.c +++ b/fs/ubifs/tnc_commit.c @@ -383,9 +383,7 @@ static int layout_in_gaps(struct ubifs_info *c, int cnt) * option which forces in-the-gaps is enabled. */ ubifs_err("out of space"); - spin_lock(&c->space_lock); dbg_dump_budg(c); - spin_unlock(&c->space_lock); dbg_dump_lprops(c); } /* Try to commit anyway */ |