Make the uuid_mutex and device_list_mutex comments inline with the changes.
Signed-off-by: Anand Jain <anand.j...@oracle.com> --- Hi David, Can you kindly add this patch to the set: 'Review uuid_mutex usage' Thanks, Anand fs/btrfs/volumes.c | 21 +++++++++------------ 1 file changed, 9 insertions(+), 12 deletions(-) diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 6d7f10729713..12617a8a7083 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -155,29 +155,26 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, * * uuid_mutex (global lock) * ------------------------ - * protects the fs_uuids list that tracks all per-fs fs_devices, resulting from + * Protects the fs_uuids list that tracks all per-fs fs_devices, resulting from * the SCAN_DEV ioctl registration or from mount either implicitly (the first - * device) or requested by the device= mount option - * - * the mutex can be very coarse and can cover long-running operations - * - * protects: updates to fs_devices counters like missing devices, rw devices, - * seeding, structure cloning, openning/closing devices at mount/umount time + * device) or requested by the device= mount option. * * global::fs_devs - add, remove, updates to the global list * - * does not protect: manipulation of the fs_devices::devices list! + * Does not protect: manipulation of the fs_devices::devices list! * * btrfs_device::name - renames (write side), read is RCU * * fs_devices::device_list_mutex (per-fs, with RCU) * ------------------------------------------------ - * protects updates to fs_devices::devices, ie. adding and deleting + * Protects updates to fs_devices::devices, ie. adding and deleting, and its + * counters like missing devices, rw devices, seeding, structure cloning, + * openning/closing devices at mount/umount time. * - * simple list traversal with read-only actions can be done with RCU protection + * Simple list traversal with read-only actions can be done with RCU protection. * - * may be used to exclude some operations from running concurrently without any - * modifications to the list (see write_all_supers) + * May be used to exclude some operations from running concurrently without any + * modifications to the list (see write_all_supers). * * balance_mutex * ------------- -- 2.15.0 -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
