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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-07-04 21:58:33 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-07-04 21:58:33 +0200 |
| commit | 28e92f990337b8b4c5fdec47667f8b96089c503e (patch) | |
| tree | 0dc55280883e7262d831ad24deb3a4fd2a56031a /lib | |
| parent | Merge branch 'lkmm.2021.05.10c' of git://git.kernel.org/pub/scm/linux/kernel/... (diff) | |
| parent | Merge branches 'bitmaprange.2021.05.10c', 'doc.2021.05.10c', 'fixes.2021.05.1... (diff) | |
| download | linux-28e92f990337b8b4c5fdec47667f8b96089c503e.tar.xz linux-28e92f990337b8b4c5fdec47667f8b96089c503e.zip | |
Merge branch 'core-rcu-2021.07.04' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu
Pull RCU updates from Paul McKenney:
- Bitmap parsing support for "all" as an alias for all bits
- Documentation updates
- Miscellaneous fixes, including some that overlap into mm and lockdep
- kvfree_rcu() updates
- mem_dump_obj() updates, with acks from one of the slab-allocator
maintainers
- RCU NOCB CPU updates, including limited deoffloading
- SRCU updates
- Tasks-RCU updates
- Torture-test updates
* 'core-rcu-2021.07.04' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (78 commits)
tasks-rcu: Make show_rcu_tasks_gp_kthreads() be static inline
rcu-tasks: Make ksoftirqd provide RCU Tasks quiescent states
rcu: Add missing __releases() annotation
rcu: Remove obsolete rcu_read_unlock() deadlock commentary
rcu: Improve comments describing RCU read-side critical sections
rcu: Create an unrcu_pointer() to remove __rcu from a pointer
srcu: Early test SRCU polling start
rcu: Fix various typos in comments
rcu/nocb: Unify timers
rcu/nocb: Prepare for fine-grained deferred wakeup
rcu/nocb: Only cancel nocb timer if not polling
rcu/nocb: Delete bypass_timer upon nocb_gp wakeup
rcu/nocb: Cancel nocb_timer upon nocb_gp wakeup
rcu/nocb: Allow de-offloading rdp leader
rcu/nocb: Directly call __wake_nocb_gp() from bypass timer
rcu: Don't penalize priority boosting when there is nothing to boost
rcu: Point to documentation of ordering guarantees
rcu: Make rcu_gp_cleanup() be noinline for tracing
rcu: Restrict RCU_STRICT_GRACE_PERIOD to at most four CPUs
rcu: Make show_rcu_gp_kthreads() dump rcu_node structures blocking GP
...
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/bitmap.c | 9 | ||||
| -rw-r--r-- | lib/test_bitmap.c | 7 |
2 files changed, 16 insertions, 0 deletions
diff --git a/lib/bitmap.c b/lib/bitmap.c index 74ceb02f45e3..6e29b2aae6ba 100644 --- a/lib/bitmap.c +++ b/lib/bitmap.c @@ -581,6 +581,14 @@ static const char *bitmap_parse_region(const char *str, struct region *r) { unsigned int lastbit = r->nbits - 1; + if (!strncasecmp(str, "all", 3)) { + r->start = 0; + r->end = lastbit; + str += 3; + + goto check_pattern; + } + str = bitmap_getnum(str, &r->start, lastbit); if (IS_ERR(str)) return str; @@ -595,6 +603,7 @@ static const char *bitmap_parse_region(const char *str, struct region *r) if (IS_ERR(str)) return str; +check_pattern: if (end_of_region(*str)) goto no_pattern; diff --git a/lib/test_bitmap.c b/lib/test_bitmap.c index 9cd575583180..4ea73f5aed41 100644 --- a/lib/test_bitmap.c +++ b/lib/test_bitmap.c @@ -366,6 +366,13 @@ static const struct test_bitmap_parselist parselist_tests[] __initconst = { {0, "0-31:1/3,1-31:1/3,2-31:1/3", &exp1[8 * step], 32, 0}, {0, "1-10:8/12,8-31:24/29,0-31:0/3", &exp1[9 * step], 32, 0}, + {0, "all", &exp1[8 * step], 32, 0}, + {0, "0, 1, all, ", &exp1[8 * step], 32, 0}, + {0, "all:1/2", &exp1[4 * step], 32, 0}, + {0, "ALL:1/2", &exp1[4 * step], 32, 0}, + {-EINVAL, "al", NULL, 8, 0}, + {-EINVAL, "alll", NULL, 8, 0}, + {-EINVAL, "-1", NULL, 8, 0}, {-EINVAL, "-0", NULL, 8, 0}, {-EINVAL, "10-1", NULL, 8, 0}, |