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From: zkabelac@sourceware.org To: lvm-devel@redhat.com, lvm2-cvs@sourceware.org Subject: LVM2 ./WHATS_NEW lib/device/dev-cache.c Date: Wed, 21 Dec 2011 13:17:00 -0000 [thread overview] Message-ID: <20111221131754.9797.qmail@sourceware.org> (raw) CVSROOT: /cvs/lvm2 Module name: LVM2 Changes by: zkabelac@sourceware.org 2011-12-21 13:17:54 Modified files: . : WHATS_NEW lib/device : dev-cache.c Log message: Add common initialization code for struct device Avoid duplicate code and add _dev_init() where all common member values are initialized. Patches: http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/WHATS_NEW.diff?cvsroot=lvm2&r1=1.2210&r2=1.2211 http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/lib/device/dev-cache.c.diff?cvsroot=lvm2&r1=1.67&r2=1.68 --- LVM2/WHATS_NEW 2011/12/21 13:14:54 1.2210 +++ LVM2/WHATS_NEW 2011/12/21 13:17:54 1.2211 @@ -1,5 +1,6 @@ Version 2.02.89 - ================================== + Add function to inialize common structure device members. Always zalloc device structure during initialization. Fix missing thread list manipulation protection in dmeventd. Do not derefence lv pointer in _percent_run() function before NULL check. --- LVM2/lib/device/dev-cache.c 2011/12/21 13:14:54 1.67 +++ LVM2/lib/device/dev-cache.c 2011/12/21 13:17:54 1.68 @@ -54,6 +54,18 @@ static int _insert(const char *path, int rec, int check_with_udev_db); +/* Setup non-zero members of passed zeroed 'struct device' */ +static void _dev_init(struct device *dev, int max_error_count) +{ + dev->block_size = -1; + dev->fd = -1; + dev->read_ahead = -1; + dev->max_error_count = max_error_count; + + dm_list_init(&dev->aliases); + dm_list_init(&dev->open_list); +} + struct device *dev_create_file(const char *filename, struct device *dev, struct str_list *alias, int use_malloc) { @@ -76,7 +88,6 @@ dm_free(alias); return NULL; } - dev->flags = DEV_ALLOCED; } else { if (!(dev = _zalloc(sizeof(*dev)))) { log_error("struct device allocation failed"); @@ -97,19 +108,9 @@ return NULL; } - dev->flags |= DEV_REGULAR; - dm_list_init(&dev->aliases); + _dev_init(dev, NO_DEV_ERROR_COUNT_LIMIT); + dev->flags = DEV_REGULAR | ((use_malloc) ? DEV_ALLOCED : 0); dm_list_add(&dev->aliases, &alias->list); - dev->end = UINT64_C(0); - dev->dev = 0; - dev->fd = -1; - dev->open_count = 0; - dev->error_count = 0; - dev->max_error_count = NO_DEV_ERROR_COUNT_LIMIT; - dev->block_size = -1; - dev->read_ahead = -1; - memset(dev->pvid, 0, sizeof(dev->pvid)); - dm_list_init(&dev->open_list); return dev; } @@ -122,17 +123,9 @@ log_error("struct device allocation failed"); return NULL; } - dev->flags = 0; - dm_list_init(&dev->aliases); + + _dev_init(dev, dev_disable_after_error_count()); dev->dev = d; - dev->fd = -1; - dev->open_count = 0; - dev->max_error_count = dev_disable_after_error_count(); - dev->block_size = -1; - dev->read_ahead = -1; - dev->end = UINT64_C(0); - memset(dev->pvid, 0, sizeof(dev->pvid)); - dm_list_init(&dev->open_list); return dev; }
next reply other threads:[~2011-12-21 13:17 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top 2011-12-21 13:17 zkabelac [this message] -- strict thread matches above, loose matches on Subject: below -- 2012-04-11 9:12 prajnoha 2011-12-21 13:21 zkabelac 2011-12-21 13:14 zkabelac 2011-01-17 15:16 zkabelac 2010-05-24 22:53 agk 2005-03-21 14:51 agk
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