From aeb5d727062a0238a2f96c9c380fbd2be4640c6f Mon Sep 17 00:00:00 2001 From: Al Viro Date: Tue, 2 Sep 2008 15:28:45 -0400 Subject: [PATCH] introduce fmode_t, do annotations Signed-off-by: Al Viro --- drivers/char/nvram.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers/char') diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c index 39f6357e3b5d..8054ee839b3c 100644 --- a/drivers/char/nvram.c +++ b/drivers/char/nvram.c @@ -338,7 +338,7 @@ nvram_open(struct inode *inode, struct file *file) if ((nvram_open_cnt && (file->f_flags & O_EXCL)) || (nvram_open_mode & NVRAM_EXCL) || - ((file->f_mode & 2) && (nvram_open_mode & NVRAM_WRITE))) { + ((file->f_mode & FMODE_WRITE) && (nvram_open_mode & NVRAM_WRITE))) { spin_unlock(&nvram_state_lock); unlock_kernel(); return -EBUSY; @@ -346,7 +346,7 @@ nvram_open(struct inode *inode, struct file *file) if (file->f_flags & O_EXCL) nvram_open_mode |= NVRAM_EXCL; - if (file->f_mode & 2) + if (file->f_mode & FMODE_WRITE) nvram_open_mode |= NVRAM_WRITE; nvram_open_cnt++; @@ -366,7 +366,7 @@ nvram_release(struct inode *inode, struct file *file) /* if only one instance is open, clear the EXCL bit */ if (nvram_open_mode & NVRAM_EXCL) nvram_open_mode &= ~NVRAM_EXCL; - if (file->f_mode & 2) + if (file->f_mode & FMODE_WRITE) nvram_open_mode &= ~NVRAM_WRITE; spin_unlock(&nvram_state_lock); -- cgit v1.2.3 From 9a1c3542768b5a58e45a9216921cd10a3bae1205 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 22 Feb 2008 20:40:24 -0500 Subject: [PATCH] pass fmode_t to blkdev_put() Signed-off-by: Al Viro --- drivers/block/pktcdvd.c | 8 ++++---- drivers/char/raw.c | 4 ++-- drivers/md/dm-table.c | 4 ++-- drivers/md/md.c | 4 ++-- drivers/s390/block/dasd_genhd.c | 2 +- fs/block_dev.c | 22 +++++++++++----------- fs/ext3/super.c | 4 ++-- fs/ext4/super.c | 4 ++-- fs/jfs/jfs_logmgr.c | 4 ++-- fs/ocfs2/cluster/heartbeat.c | 4 ++-- fs/partitions/check.c | 2 +- fs/reiserfs/journal.c | 4 ++-- include/linux/fs.h | 2 +- kernel/power/swap.c | 8 ++++---- 14 files changed, 38 insertions(+), 38 deletions(-) (limited to 'drivers/char') diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index 90548da9c1cb..ce8c71901923 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -2381,7 +2381,7 @@ static int pkt_open_dev(struct pktcdvd_device *pd, fmode_t write) out_unclaim: bd_release(pd->bdev); out_putdev: - blkdev_put(pd->bdev); + blkdev_put(pd->bdev, FMODE_READ); out: return ret; } @@ -2399,7 +2399,7 @@ static void pkt_release_dev(struct pktcdvd_device *pd, int flush) pkt_set_speed(pd, MAX_SPEED, MAX_SPEED); bd_release(pd->bdev); - blkdev_put(pd->bdev); + blkdev_put(pd->bdev, FMODE_READ); pkt_shrink_pktlist(pd); } @@ -2790,7 +2790,7 @@ static int pkt_new_dev(struct pktcdvd_device *pd, dev_t dev) return 0; out_mem: - blkdev_put(bdev); + blkdev_put(bdev, FMODE_READ|FMODE_WRITE); /* This is safe: open() is still holding a reference. */ module_put(THIS_MODULE); return ret; @@ -2975,7 +2975,7 @@ static int pkt_remove_dev(dev_t pkt_dev) pkt_debugfs_dev_remove(pd); pkt_sysfs_dev_remove(pd); - blkdev_put(pd->bdev); + blkdev_put(pd->bdev, FMODE_READ|FMODE_WRITE); remove_proc_entry(pd->name, pkt_proc); DPRINTK(DRIVER_NAME": writer %s unmapped\n", pd->name); diff --git a/drivers/char/raw.c b/drivers/char/raw.c index e139372d0e69..bfd59e6bf54f 100644 --- a/drivers/char/raw.c +++ b/drivers/char/raw.c @@ -87,7 +87,7 @@ static int raw_open(struct inode *inode, struct file *filp) out2: bd_release(bdev); out1: - blkdev_put(bdev); + blkdev_put(bdev, filp->f_mode); out: mutex_unlock(&raw_mutex); return err; @@ -112,7 +112,7 @@ static int raw_release(struct inode *inode, struct file *filp) mutex_unlock(&raw_mutex); bd_release(bdev); - blkdev_put(bdev); + blkdev_put(bdev, filp->f_mode); return 0; } diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c index 7c8671b06fe3..dd8bd2e867cd 100644 --- a/drivers/md/dm-table.c +++ b/drivers/md/dm-table.c @@ -357,7 +357,7 @@ static int open_dev(struct dm_dev_internal *d, dev_t dev, return PTR_ERR(bdev); r = bd_claim_by_disk(bdev, _claim_ptr, dm_disk(md)); if (r) - blkdev_put(bdev); + blkdev_put(bdev, d->dm_dev.mode); else d->dm_dev.bdev = bdev; return r; @@ -372,7 +372,7 @@ static void close_dev(struct dm_dev_internal *d, struct mapped_device *md) return; bd_release_from_disk(d->dm_dev.bdev, dm_disk(md)); - blkdev_put(d->dm_dev.bdev); + blkdev_put(d->dm_dev.bdev, d->dm_dev.mode); d->dm_dev.bdev = NULL; } diff --git a/drivers/md/md.c b/drivers/md/md.c index 06ea991c7a40..c1a837ca193c 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1520,7 +1520,7 @@ static int lock_rdev(mdk_rdev_t *rdev, dev_t dev, int shared) if (err) { printk(KERN_ERR "md: could not bd_claim %s.\n", bdevname(bdev, b)); - blkdev_put(bdev); + blkdev_put(bdev, FMODE_READ|FMODE_WRITE); return err; } if (!shared) @@ -1536,7 +1536,7 @@ static void unlock_rdev(mdk_rdev_t *rdev) if (!bdev) MD_BUG(); bd_release(bdev); - blkdev_put(bdev); + blkdev_put(bdev, FMODE_READ|FMODE_WRITE); } void md_autodetect_dev(dev_t dev); diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c index aee6565aaf98..3c1b6915c9ad 100644 --- a/drivers/s390/block/dasd_genhd.c +++ b/drivers/s390/block/dasd_genhd.c @@ -152,7 +152,7 @@ void dasd_destroy_partitions(struct dasd_block *block) invalidate_partition(block->gdp, 0); /* Matching blkdev_put to the blkdev_get in dasd_scan_partitions. */ - blkdev_put(bdev); + blkdev_put(bdev, FMODE_READ); set_capacity(block->gdp, 0); } diff --git a/fs/block_dev.c b/fs/block_dev.c index 55124ac8c7ad..05131baf3cf8 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -977,7 +977,7 @@ EXPORT_SYMBOL(bd_set_size); static int __blkdev_get(struct block_device *bdev, fmode_t mode, unsigned flags, int for_part); -static int __blkdev_put(struct block_device *bdev, int for_part); +static int __blkdev_put(struct block_device *bdev, fmode_t mode, int for_part); /* * bd_mutex locking: @@ -1095,7 +1095,7 @@ static int do_open(struct block_device *bdev, struct file *file, int for_part) bdev->bd_part = NULL; bdev->bd_inode->i_data.backing_dev_info = &default_backing_dev_info; if (bdev != bdev->bd_contains) - __blkdev_put(bdev->bd_contains, 1); + __blkdev_put(bdev->bd_contains, file->f_mode, 1); bdev->bd_contains = NULL; out_unlock_bdev: mutex_unlock(&bdev->bd_mutex); @@ -1163,11 +1163,11 @@ static int blkdev_open(struct inode * inode, struct file * filp) if (!(res = bd_claim(bdev, filp))) return 0; - blkdev_put(bdev); + blkdev_put(bdev, filp->f_mode); return res; } -static int __blkdev_put(struct block_device *bdev, int for_part) +static int __blkdev_put(struct block_device *bdev, fmode_t mode, int for_part) { int ret = 0; struct gendisk *disk = bdev->bd_disk; @@ -1184,7 +1184,7 @@ static int __blkdev_put(struct block_device *bdev, int for_part) } if (bdev->bd_contains == bdev) { if (disk->fops->release) - ret = disk->fops->release(disk, 0); + ret = disk->fops->release(disk, mode); } if (!bdev->bd_openers) { struct module *owner = disk->fops->owner; @@ -1203,13 +1203,13 @@ static int __blkdev_put(struct block_device *bdev, int for_part) mutex_unlock(&bdev->bd_mutex); bdput(bdev); if (victim) - __blkdev_put(victim, 1); + __blkdev_put(victim, mode, 1); return ret; } -int blkdev_put(struct block_device *bdev) +int blkdev_put(struct block_device *bdev, fmode_t mode) { - return __blkdev_put(bdev, 0); + return __blkdev_put(bdev, mode, 0); } EXPORT_SYMBOL(blkdev_put); @@ -1218,7 +1218,7 @@ static int blkdev_close(struct inode * inode, struct file * filp) struct block_device *bdev = I_BDEV(filp->f_mapping->host); if (bdev->bd_holder == filp) bd_release(bdev); - return blkdev_put(bdev); + return blkdev_put(bdev, filp->f_mode); } static long block_ioctl(struct file *file, unsigned cmd, unsigned long arg) @@ -1343,7 +1343,7 @@ struct block_device *open_bdev_excl(const char *path, int flags, void *holder) return bdev; blkdev_put: - blkdev_put(bdev); + blkdev_put(bdev, mode); return ERR_PTR(error); } @@ -1359,7 +1359,7 @@ EXPORT_SYMBOL(open_bdev_excl); void close_bdev_excl(struct block_device *bdev) { bd_release(bdev); - blkdev_put(bdev); + blkdev_put(bdev, 0); /* move up in the next patches */ } EXPORT_SYMBOL(close_bdev_excl); diff --git a/fs/ext3/super.c b/fs/ext3/super.c index 3a260af5544d..15c38e69b694 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -347,7 +347,7 @@ fail: static int ext3_blkdev_put(struct block_device *bdev) { bd_release(bdev); - return blkdev_put(bdev); + return blkdev_put(bdev, FMODE_READ|FMODE_WRITE); } static int ext3_blkdev_remove(struct ext3_sb_info *sbi) @@ -2066,7 +2066,7 @@ static journal_t *ext3_get_dev_journal(struct super_block *sb, if (bd_claim(bdev, sb)) { printk(KERN_ERR "EXT3: failed to claim external journal device.\n"); - blkdev_put(bdev); + blkdev_put(bdev, FMODE_READ|FMODE_WRITE); return NULL; } diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 9b2b2bc4ec17..c12cf7a657a9 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -399,7 +399,7 @@ fail: static int ext4_blkdev_put(struct block_device *bdev) { bd_release(bdev); - return blkdev_put(bdev); + return blkdev_put(bdev, FMODE_READ|FMODE_WRITE); } static int ext4_blkdev_remove(struct ext4_sb_info *sbi) @@ -2553,7 +2553,7 @@ static journal_t *ext4_get_dev_journal(struct super_block *sb, if (bd_claim(bdev, sb)) { printk(KERN_ERR "EXT4: failed to claim external journal device.\n"); - blkdev_put(bdev); + blkdev_put(bdev, FMODE_READ|FMODE_WRITE); return NULL; } diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c index cd2ec2988b59..335c4de6552d 100644 --- a/fs/jfs/jfs_logmgr.c +++ b/fs/jfs/jfs_logmgr.c @@ -1168,7 +1168,7 @@ journal_found: bd_release(bdev); close: /* close external log device */ - blkdev_put(bdev); + blkdev_put(bdev, FMODE_READ|FMODE_WRITE); free: /* free log descriptor */ mutex_unlock(&jfs_log_mutex); @@ -1514,7 +1514,7 @@ int lmLogClose(struct super_block *sb) rc = lmLogShutdown(log); bd_release(bdev); - blkdev_put(bdev); + blkdev_put(bdev, FMODE_READ|FMODE_WRITE); kfree(log); diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index 7dce1612553e..4b6fdf591eed 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/fs/ocfs2/cluster/heartbeat.c @@ -976,7 +976,7 @@ static void o2hb_region_release(struct config_item *item) } if (reg->hr_bdev) - blkdev_put(reg->hr_bdev); + blkdev_put(reg->hr_bdev, FMODE_READ|FMODE_WRITE); if (reg->hr_slots) kfree(reg->hr_slots); @@ -1358,7 +1358,7 @@ out: iput(inode); if (ret < 0) { if (reg->hr_bdev) { - blkdev_put(reg->hr_bdev); + blkdev_put(reg->hr_bdev, FMODE_READ|FMODE_WRITE); reg->hr_bdev = NULL; } } diff --git a/fs/partitions/check.c b/fs/partitions/check.c index cfb0c80690aa..5a35ff2e1a9b 100644 --- a/fs/partitions/check.c +++ b/fs/partitions/check.c @@ -488,7 +488,7 @@ void register_disk(struct gendisk *disk) err = blkdev_get(bdev, FMODE_READ, 0); if (err < 0) goto exit; - blkdev_put(bdev); + blkdev_put(bdev, FMODE_READ); exit: /* announce disk after possible partitions are created */ diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c index b89d193a00d9..3261518478f4 100644 --- a/fs/reiserfs/journal.c +++ b/fs/reiserfs/journal.c @@ -2575,7 +2575,7 @@ static int release_journal_dev(struct super_block *super, if (journal->j_dev_bd != NULL) { if (journal->j_dev_bd->bd_dev != super->s_dev) bd_release(journal->j_dev_bd); - result = blkdev_put(journal->j_dev_bd); + result = blkdev_put(journal->j_dev_bd, 0); /* move up */ journal->j_dev_bd = NULL; } @@ -2618,7 +2618,7 @@ static int journal_init_dev(struct super_block *super, } else if (jdev != super->s_dev) { result = bd_claim(journal->j_dev_bd, journal); if (result) { - blkdev_put(journal->j_dev_bd); + blkdev_put(journal->j_dev_bd, blkdev_mode); return result; } diff --git a/include/linux/fs.h b/include/linux/fs.h index b5894604ba5e..04c8dc41f454 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1722,7 +1722,7 @@ extern int blkdev_driver_ioctl(struct inode *inode, struct file *file, unsigned long arg); extern long compat_blkdev_ioctl(struct file *, unsigned, unsigned long); extern int blkdev_get(struct block_device *, fmode_t, unsigned); -extern int blkdev_put(struct block_device *); +extern int blkdev_put(struct block_device *, fmode_t); extern int bd_claim(struct block_device *, void *); extern void bd_release(struct block_device *); #ifdef CONFIG_SYSFS diff --git a/kernel/power/swap.c b/kernel/power/swap.c index 80ccac849e46..7b9d611c1106 100644 --- a/kernel/power/swap.c +++ b/kernel/power/swap.c @@ -178,7 +178,7 @@ static int swsusp_swap_check(void) /* This is called before saving image */ res = set_blocksize(resume_bdev, PAGE_SIZE); if (res < 0) - blkdev_put(resume_bdev); + blkdev_put(resume_bdev, FMODE_WRITE); return res; } @@ -574,7 +574,7 @@ int swsusp_read(unsigned int *flags_p) error = load_image(&handle, &snapshot, header->pages - 1); release_swap_reader(&handle); - blkdev_put(resume_bdev); + blkdev_put(resume_bdev, FMODE_READ); if (!error) pr_debug("PM: Image successfully loaded\n"); @@ -609,7 +609,7 @@ int swsusp_check(void) return -EINVAL; } if (error) - blkdev_put(resume_bdev); + blkdev_put(resume_bdev, FMODE_READ); else pr_debug("PM: Signature found, resuming\n"); } else { @@ -633,7 +633,7 @@ void swsusp_close(void) return; } - blkdev_put(resume_bdev); + blkdev_put(resume_bdev, 0); /* move up */ } static int swsusp_header_init(void) -- cgit v1.2.3 From 572c48921574dbe6dceb958cf965aa962baefde4 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Mon, 8 Oct 2007 13:24:05 -0400 Subject: [PATCH] sanitize blkdev_get() and friends * get rid of fake struct file/struct dentry in __blkdev_get() * merge __blkdev_get() and do_open() * get rid of flags argument of blkdev_get() Signed-off-by: Al Viro --- drivers/block/pktcdvd.c | 4 +-- drivers/char/raw.c | 2 +- drivers/s390/block/dasd_genhd.c | 2 +- fs/block_dev.c | 65 ++++++++++++++--------------------------- fs/ocfs2/cluster/heartbeat.c | 2 +- fs/partitions/check.c | 2 +- include/linux/fs.h | 2 +- kernel/power/swap.c | 2 +- 8 files changed, 30 insertions(+), 51 deletions(-) (limited to 'drivers/char') diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index ce8c71901923..f20bf359b84f 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -2332,7 +2332,7 @@ static int pkt_open_dev(struct pktcdvd_device *pd, fmode_t write) * so bdget() can't fail. */ bdget(pd->bdev->bd_dev); - if ((ret = blkdev_get(pd->bdev, FMODE_READ, O_RDONLY))) + if ((ret = blkdev_get(pd->bdev, FMODE_READ))) goto out; if ((ret = bd_claim(pd->bdev, pd))) @@ -2765,7 +2765,7 @@ static int pkt_new_dev(struct pktcdvd_device *pd, dev_t dev) bdev = bdget(dev); if (!bdev) return -ENOMEM; - ret = blkdev_get(bdev, FMODE_READ, O_RDONLY | O_NONBLOCK); + ret = blkdev_get(bdev, FMODE_READ | FMODE_NDELAY); if (ret) return ret; diff --git a/drivers/char/raw.c b/drivers/char/raw.c index bfd59e6bf54f..f3cf5eb9b7fb 100644 --- a/drivers/char/raw.c +++ b/drivers/char/raw.c @@ -65,7 +65,7 @@ static int raw_open(struct inode *inode, struct file *filp) if (!bdev) goto out; igrab(bdev->bd_inode); - err = blkdev_get(bdev, filp->f_mode, 0); + err = blkdev_get(bdev, filp->f_mode); if (err) goto out; err = bd_claim(bdev, raw_open); diff --git a/drivers/s390/block/dasd_genhd.c b/drivers/s390/block/dasd_genhd.c index 3c1b6915c9ad..e99d566b69cc 100644 --- a/drivers/s390/block/dasd_genhd.c +++ b/drivers/s390/block/dasd_genhd.c @@ -99,7 +99,7 @@ int dasd_scan_partitions(struct dasd_block *block) struct block_device *bdev; bdev = bdget_disk(block->gdp, 0); - if (!bdev || blkdev_get(bdev, FMODE_READ, 1) < 0) + if (!bdev || blkdev_get(bdev, FMODE_READ) < 0) return -ENODEV; /* * See fs/partition/check.c:register_disk,rescan_partitions diff --git a/fs/block_dev.c b/fs/block_dev.c index 4b595904cefd..b89c956e04f6 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -844,9 +844,8 @@ struct block_device *open_by_devnum(dev_t dev, fmode_t mode) { struct block_device *bdev = bdget(dev); int err = -ENOMEM; - int flags = mode & FMODE_WRITE ? O_RDWR : O_RDONLY; if (bdev) - err = blkdev_get(bdev, mode, flags); + err = blkdev_get(bdev, mode); return err ? ERR_PTR(err) : bdev; } @@ -975,8 +974,6 @@ void bd_set_size(struct block_device *bdev, loff_t size) } EXPORT_SYMBOL(bd_set_size); -static int __blkdev_get(struct block_device *bdev, fmode_t mode, unsigned flags, - int for_part); static int __blkdev_put(struct block_device *bdev, fmode_t mode, int for_part); /* @@ -986,7 +983,7 @@ static int __blkdev_put(struct block_device *bdev, fmode_t mode, int for_part); * mutex_lock_nested(whole->bd_mutex, 1) */ -static int do_open(struct block_device *bdev, struct file *file, int for_part) +static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part) { struct gendisk *disk; struct hd_struct *part = NULL; @@ -994,9 +991,9 @@ static int do_open(struct block_device *bdev, struct file *file, int for_part) int partno; int perm = 0; - if (file->f_mode & FMODE_READ) + if (mode & FMODE_READ) perm |= MAY_READ; - if (file->f_mode & FMODE_WRITE) + if (mode & FMODE_WRITE) perm |= MAY_WRITE; /* * hooks: /n/, see "layering violations". @@ -1007,15 +1004,7 @@ static int do_open(struct block_device *bdev, struct file *file, int for_part) return ret; } - if (file->f_flags & O_NDELAY) - file->f_mode |= FMODE_NDELAY; - if (file->f_flags & O_EXCL) - file->f_mode |= FMODE_EXCL; - if ((file->f_flags & O_ACCMODE) == 3) - file->f_mode |= FMODE_WRITE_IOCTL; - ret = -ENXIO; - file->f_mapping = bdev->bd_inode->i_mapping; lock_kernel(); @@ -1034,7 +1023,7 @@ static int do_open(struct block_device *bdev, struct file *file, int for_part) if (!partno) { struct backing_dev_info *bdi; if (disk->fops->open) { - ret = disk->fops->open(bdev, file->f_mode); + ret = disk->fops->open(bdev, mode); if (ret) goto out_clear; } @@ -1054,7 +1043,7 @@ static int do_open(struct block_device *bdev, struct file *file, int for_part) if (!whole) goto out_clear; BUG_ON(for_part); - ret = __blkdev_get(whole, file->f_mode, file->f_flags, 1); + ret = __blkdev_get(whole, mode, 1); if (ret) goto out_clear; bdev->bd_contains = whole; @@ -1075,7 +1064,7 @@ static int do_open(struct block_device *bdev, struct file *file, int for_part) disk = NULL; if (bdev->bd_contains == bdev) { if (bdev->bd_disk->fops->open) { - ret = bdev->bd_disk->fops->open(bdev, file->f_mode); + ret = bdev->bd_disk->fops->open(bdev, mode); if (ret) goto out_unlock_bdev; } @@ -1095,7 +1084,7 @@ static int do_open(struct block_device *bdev, struct file *file, int for_part) bdev->bd_part = NULL; bdev->bd_inode->i_data.backing_dev_info = &default_backing_dev_info; if (bdev != bdev->bd_contains) - __blkdev_put(bdev->bd_contains, file->f_mode, 1); + __blkdev_put(bdev->bd_contains, mode, 1); bdev->bd_contains = NULL; out_unlock_bdev: mutex_unlock(&bdev->bd_mutex); @@ -1111,28 +1100,9 @@ static int do_open(struct block_device *bdev, struct file *file, int for_part) return ret; } -static int __blkdev_get(struct block_device *bdev, fmode_t mode, unsigned flags, - int for_part) -{ - /* - * This crockload is due to bad choice of ->open() type. - * It will go away. - * For now, block device ->open() routine must _not_ - * examine anything in 'inode' argument except ->i_rdev. - */ - struct file fake_file = {}; - struct dentry fake_dentry = {}; - fake_file.f_mode = mode; - fake_file.f_flags = flags; - fake_file.f_path.dentry = &fake_dentry; - fake_dentry.d_inode = bdev->bd_inode; - - return do_open(bdev, &fake_file, for_part); -} - -int blkdev_get(struct block_device *bdev, fmode_t mode, unsigned flags) +int blkdev_get(struct block_device *bdev, fmode_t mode) { - return __blkdev_get(bdev, mode, flags, 0); + return __blkdev_get(bdev, mode, 0); } EXPORT_SYMBOL(blkdev_get); @@ -1149,15 +1119,24 @@ static int blkdev_open(struct inode * inode, struct file * filp) */ filp->f_flags |= O_LARGEFILE; + if (filp->f_flags & O_NDELAY) + filp->f_mode |= FMODE_NDELAY; + if (filp->f_flags & O_EXCL) + filp->f_mode |= FMODE_EXCL; + if ((filp->f_flags & O_ACCMODE) == 3) + filp->f_mode |= FMODE_WRITE_IOCTL; + bdev = bd_acquire(inode); if (bdev == NULL) return -ENOMEM; - res = do_open(bdev, filp, 0); + filp->f_mapping = bdev->bd_inode->i_mapping; + + res = blkdev_get(bdev, filp->f_mode); if (res) return res; - if (!(filp->f_flags & O_EXCL) ) + if (!(filp->f_mode & FMODE_EXCL)) return 0; if (!(res = bd_claim(bdev, filp))) @@ -1327,7 +1306,7 @@ struct block_device *open_bdev_exclusive(const char *path, fmode_t mode, void *h if (IS_ERR(bdev)) return bdev; - error = blkdev_get(bdev, mode, 0); + error = blkdev_get(bdev, mode); if (error) return ERR_PTR(error); error = -EACCES; diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index 4b6fdf591eed..6ebaa58e2c03 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/fs/ocfs2/cluster/heartbeat.c @@ -1268,7 +1268,7 @@ static ssize_t o2hb_region_dev_write(struct o2hb_region *reg, goto out; reg->hr_bdev = I_BDEV(filp->f_mapping->host); - ret = blkdev_get(reg->hr_bdev, FMODE_WRITE | FMODE_READ, 0); + ret = blkdev_get(reg->hr_bdev, FMODE_WRITE | FMODE_READ); if (ret) { reg->hr_bdev = NULL; goto out; diff --git a/fs/partitions/check.c b/fs/partitions/check.c index 5a35ff2e1a9b..633f7a0ebb2c 100644 --- a/fs/partitions/check.c +++ b/fs/partitions/check.c @@ -485,7 +485,7 @@ void register_disk(struct gendisk *disk) goto exit; bdev->bd_invalidated = 1; - err = blkdev_get(bdev, FMODE_READ, 0); + err = blkdev_get(bdev, FMODE_READ); if (err < 0) goto exit; blkdev_put(bdev, FMODE_READ); diff --git a/include/linux/fs.h b/include/linux/fs.h index c6766314dc5e..cb78e389699b 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1722,7 +1722,7 @@ extern int blkdev_driver_ioctl(struct inode *inode, struct file *file, struct gendisk *disk, unsigned cmd, unsigned long arg); extern long compat_blkdev_ioctl(struct file *, unsigned, unsigned long); -extern int blkdev_get(struct block_device *, fmode_t, unsigned); +extern int blkdev_get(struct block_device *, fmode_t); extern int blkdev_put(struct block_device *, fmode_t); extern int bd_claim(struct block_device *, void *); extern void bd_release(struct block_device *); diff --git a/kernel/power/swap.c b/kernel/power/swap.c index 178b001a4f17..b7713b53d07a 100644 --- a/kernel/power/swap.c +++ b/kernel/power/swap.c @@ -172,7 +172,7 @@ static int swsusp_swap_check(void) /* This is called before saving image */ return res; root_swap = res; - res = blkdev_get(resume_bdev, FMODE_WRITE, O_RDWR); + res = blkdev_get(resume_bdev, FMODE_WRITE); if (res) return res; -- cgit v1.2.3 From 56b26add02b4bdea81d5e0ebda60db1fe3311ad4 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Fri, 19 Sep 2008 03:17:36 -0400 Subject: [PATCH] kill the rest of struct file propagation in block ioctls Now we can switch blkdev_ioctl() block_device/mode Signed-off-by: Al Viro --- block/compat_ioctl.c | 10 +++++----- block/ioctl.c | 9 +-------- drivers/char/raw.c | 2 +- fs/block_dev.c | 8 ++++++-- include/linux/fs.h | 2 +- 5 files changed, 14 insertions(+), 17 deletions(-) (limited to 'drivers/char') diff --git a/block/compat_ioctl.c b/block/compat_ioctl.c index 5b3db0640d87..3098c92402fd 100644 --- a/block/compat_ioctl.c +++ b/block/compat_ioctl.c @@ -177,7 +177,7 @@ struct compat_blkpg_ioctl_arg { compat_caddr_t data; }; -static int compat_blkpg_ioctl(struct inode *inode, struct file *file, +static int compat_blkpg_ioctl(struct block_device *bdev, fmode_t mode, unsigned int cmd, struct compat_blkpg_ioctl_arg __user *ua32) { struct blkpg_ioctl_arg __user *a = compat_alloc_user_space(sizeof(*a)); @@ -196,7 +196,7 @@ static int compat_blkpg_ioctl(struct inode *inode, struct file *file, if (err) return err; - return blkdev_ioctl(inode, file, cmd, (unsigned long)a); + return blkdev_ioctl(bdev, mode, cmd, (unsigned long)a); } #define BLKBSZGET_32 _IOR(0x12, 112, int) @@ -715,13 +715,13 @@ long compat_blkdev_ioctl(struct file *file, unsigned cmd, unsigned long arg) * but we call blkdev_ioctl, which gets the lock for us */ case BLKRRPART: - return blkdev_ioctl(inode, file, cmd, + return blkdev_ioctl(bdev, mode, cmd, (unsigned long)compat_ptr(arg)); case BLKBSZSET_32: - return blkdev_ioctl(inode, file, BLKBSZSET, + return blkdev_ioctl(bdev, mode, BLKBSZSET, (unsigned long)compat_ptr(arg)); case BLKPG: - return compat_blkpg_ioctl(inode, file, cmd, compat_ptr(arg)); + return compat_blkpg_ioctl(bdev, mode, cmd, compat_ptr(arg)); case BLKRAGET: case BLKFRAGET: if (!arg) diff --git a/block/ioctl.c b/block/ioctl.c index 14b7f2c10662..c832d639b6e2 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -230,20 +230,13 @@ EXPORT_SYMBOL_GPL(__blkdev_driver_ioctl); * always keep this in sync with compat_blkdev_ioctl() and * compat_blkdev_locked_ioctl() */ -int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd, +int blkdev_ioctl(struct block_device *bdev, fmode_t mode, unsigned cmd, unsigned long arg) { - struct block_device *bdev = inode->i_bdev; struct gendisk *disk = bdev->bd_disk; struct backing_dev_info *bdi; loff_t size; int ret, n; - fmode_t mode = 0; - if (file) { - mode = file->f_mode; - if (file->f_flags & O_NDELAY) - mode |= FMODE_NDELAY_NOW; - } switch(cmd) { case BLKFLSBUF: diff --git a/drivers/char/raw.c b/drivers/char/raw.c index f3cf5eb9b7fb..96adf28a17e4 100644 --- a/drivers/char/raw.c +++ b/drivers/char/raw.c @@ -125,7 +125,7 @@ raw_ioctl(struct inode *inode, struct file *filp, { struct block_device *bdev = filp->private_data; - return blkdev_ioctl(bdev->bd_inode, NULL, command, arg); + return blkdev_ioctl(bdev, 0, command, arg); } static void bind_device(struct raw_config_request *rq) diff --git a/fs/block_dev.c b/fs/block_dev.c index b89c956e04f6..05865b93f7e1 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -1202,7 +1202,11 @@ static int blkdev_close(struct inode * inode, struct file * filp) static long block_ioctl(struct file *file, unsigned cmd, unsigned long arg) { - return blkdev_ioctl(file->f_mapping->host, file, cmd, arg); + struct block_device *bdev = I_BDEV(file->f_mapping->host); + fmode_t mode = file->f_mode; + if (file->f_flags & O_NDELAY) + mode |= FMODE_NDELAY_NOW; + return blkdev_ioctl(bdev, mode, cmd, arg); } static const struct address_space_operations def_blk_aops = { @@ -1238,7 +1242,7 @@ int ioctl_by_bdev(struct block_device *bdev, unsigned cmd, unsigned long arg) int res; mm_segment_t old_fs = get_fs(); set_fs(KERNEL_DS); - res = blkdev_ioctl(bdev->bd_inode, NULL, cmd, arg); + res = blkdev_ioctl(bdev, 0, cmd, arg); set_fs(old_fs); return res; } diff --git a/include/linux/fs.h b/include/linux/fs.h index 11de682c65a1..ff536e106b4e 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1717,7 +1717,7 @@ extern const struct file_operations bad_sock_fops; extern const struct file_operations def_fifo_fops; #ifdef CONFIG_BLOCK extern int ioctl_by_bdev(struct block_device *, unsigned, unsigned long); -extern int blkdev_ioctl(struct inode *, struct file *, unsigned, unsigned long); +extern int blkdev_ioctl(struct block_device *, fmode_t, unsigned, unsigned long); extern long compat_blkdev_ioctl(struct file *, unsigned, unsigned long); extern int blkdev_get(struct block_device *, fmode_t); extern int blkdev_put(struct block_device *, fmode_t); -- cgit v1.2.3