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btrfs: separate out the extent leak code

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We check both extent buffer and extent state leaks in the same function,
separate these two functions out so we can move them around.

Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2019-09-23 10:05:17 -04:00 committed by David Sterba
parent 34ffafdba1
commit 33ca832fef
1 changed files with 18 additions and 13 deletions
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31
fs/btrfs/extent_io.c
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@ -59,11 +59,22 @@ void btrfs_leak_debug_del(struct list_head *entry)
spin_unlock_irqrestore(&leak_lock, flags); spin_unlock_irqrestore(&leak_lock, flags);
} }
static inline static inline void btrfs_extent_buffer_leak_debug_check(void)
void btrfs_leak_debug_check(void) {
struct extent_buffer *eb;
while (!list_empty(&buffers)) {
eb = list_entry(buffers.next, struct extent_buffer, leak_list);
pr_err("BTRFS: buffer leak start %llu len %lu refs %d bflags %lu\n",
eb->start, eb->len, atomic_read(&eb->refs), eb->bflags);
list_del(&eb->leak_list);
kmem_cache_free(extent_buffer_cache, eb);
}
}
static inline void btrfs_extent_state_leak_debug_check(void)
{ {
struct extent_state *state; struct extent_state *state;
struct extent_buffer *eb;
while (!list_empty(&states)) { while (!list_empty(&states)) {
state = list_entry(states.next, struct extent_state, leak_list); state = list_entry(states.next, struct extent_state, leak_list);
@ -74,14 +85,6 @@ void btrfs_leak_debug_check(void)
list_del(&state->leak_list); list_del(&state->leak_list);
kmem_cache_free(extent_state_cache, state); kmem_cache_free(extent_state_cache, state);
} }
while (!list_empty(&buffers)) {
eb = list_entry(buffers.next, struct extent_buffer, leak_list);
pr_err("BTRFS: buffer leak start %llu len %lu refs %d bflags %lu\n",
eb->start, eb->len, atomic_read(&eb->refs), eb->bflags);
list_del(&eb->leak_list);
kmem_cache_free(extent_buffer_cache, eb);
}
} }
#define btrfs_debug_check_extent_io_range(tree, start, end) \ #define btrfs_debug_check_extent_io_range(tree, start, end) \
@ -105,7 +108,8 @@ static inline void __btrfs_debug_check_extent_io_range(const char *caller,
#else #else
#define btrfs_leak_debug_add(new, head) do {} while (0) #define btrfs_leak_debug_add(new, head) do {} while (0)
#define btrfs_leak_debug_del(entry) do {} while (0) #define btrfs_leak_debug_del(entry) do {} while (0)
#define btrfs_leak_debug_check() do {} while (0) #define btrfs_extent_buffer_leak_debug_check() do {} while (0)
#define btrfs_extent_state_leak_debug_check() do {} while (0)
#define btrfs_debug_check_extent_io_range(c, s, e) do {} while (0) #define btrfs_debug_check_extent_io_range(c, s, e) do {} while (0)
#endif #endif
@ -235,7 +239,8 @@ free_state_cache:
void __cold extent_io_exit(void) void __cold extent_io_exit(void)
{ {
btrfs_leak_debug_check(); btrfs_extent_buffer_leak_debug_check();
btrfs_extent_state_leak_debug_check();
/* /*
* Make sure all delayed rcu free are flushed before we * Make sure all delayed rcu free are flushed before we