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authorSergey Senozhatsky <sergey.senozhatsky@gmail.com>2015-06-26 01:00:14 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2015-06-26 03:00:36 +0300
commitd12b63c927e0e90de4b55d5084f947707c6d8cf4 (patch)
tree792189338f88eab5ccbb49829951a2ee79001ad3
parentc3cdb40e66344553898daa3ccd068c03173a3f42 (diff)
downloadlinux-d12b63c927e0e90de4b55d5084f947707c6d8cf4.tar.xz
zram: report every added and removed device
With dynamic device creation/removal (which will be introduced later in the series) printing num_devices in zram_init() will not make a lot of sense, as well as printing the number of destroyed devices in destroy_devices(). Print per-device action (added/removed) in zram_add() and zram_remove() instead. Example: [ 3645.259652] zram: Added device: zram5 [ 3646.152074] zram: Added device: zram6 [ 3650.585012] zram: Removed device: zram5 [ 3655.845584] zram: Added device: zram8 [ 3660.975223] zram: Removed device: zram6 Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Acked-by: Minchan Kim <minchan@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--drivers/block/zram/zram_drv.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c
index 70aac2e564e9..4429f546b532 100644
--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1238,6 +1238,8 @@ static int zram_add(int device_id)
strlcpy(zram->compressor, default_compressor, sizeof(zram->compressor));
zram->meta = NULL;
zram->max_comp_streams = 1;
+
+ pr_info("Added device: %s\n", zram->disk->disk_name);
return 0;
out_free_disk:
@@ -1254,6 +1256,7 @@ out_free_dev:
static void zram_remove(struct zram *zram)
{
+ pr_info("Removed device: %s\n", zram->disk->disk_name);
/*
* Remove sysfs first, so no one will perform a disksize
* store while we destroy the devices
@@ -1280,7 +1283,6 @@ static void destroy_devices(void)
idr_for_each(&zram_index_idr, &zram_remove_cb, NULL);
idr_destroy(&zram_index_idr);
unregister_blkdev(zram_major, "zram");
- pr_info("Destroyed device(s)\n");
}
static int __init zram_init(void)
@@ -1299,7 +1301,6 @@ static int __init zram_init(void)
goto out_error;
}
- pr_info("Created %u device(s)\n", num_devices);
return 0;
out_error: