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| author | Kent Overstreet <kent.overstreet@linux.dev> | 2024-11-29 19:13:54 -0500 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-12-21 01:36:21 -0500 |
| commit | 7807b5b07de1d009275e00b7fa51db31071d57a4 (patch) | |
| tree | 919258fe1cf6d43a1bc4174b2615ccd3308028ee /fs/bcachefs/util.h | |
| parent | bcachefs: Convert write path errors to inum_to_path() (diff) | |
| download | linux-7807b5b07de1d009275e00b7fa51db31071d57a4.tar.gz linux-7807b5b07de1d009275e00b7fa51db31071d57a4.zip | |
bcachefs: list_pop_entry()
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs/util.h')
| -rw-r--r-- | fs/bcachefs/util.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/fs/bcachefs/util.h b/fs/bcachefs/util.h index fb02c1c36004..5e4820c8fa44 100644 --- a/fs/bcachefs/util.h +++ b/fs/bcachefs/util.h @@ -317,6 +317,19 @@ do { \ _ptr ? container_of(_ptr, type, member) : NULL; \ }) +static inline struct list_head *list_pop(struct list_head *head) +{ + if (list_empty(head)) + return NULL; + + struct list_head *ret = head->next; + list_del_init(ret); + return ret; +} + +#define list_pop_entry(head, type, member) \ + container_of_or_null(list_pop(head), type, member) + /* Does linear interpolation between powers of two */ static inline unsigned fract_exp_two(unsigned x, unsigned fract_bits) { |