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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-15 01:48:31 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-15 01:48:31 +0400 |
| commit | d1794f2c5b5817eb79ccc5e00701ca748d1b073a (patch) | |
| tree | 5a4c98e694e88a8c82f342d0cc9edb2a4cbbef36 /drivers/s390/block | |
| parent | a41eebab7537890409ea9dfe0fcda9b5fbdb090d (diff) | |
| parent | 2fceef397f9880b212a74c418290ce69e7ac00eb (diff) | |
| download | linux-d1794f2c5b5817eb79ccc5e00701ca748d1b073a.tar.xz | |
Merge branch 'bkl-removal' of git://git.lwn.net/linux-2.6
* 'bkl-removal' of git://git.lwn.net/linux-2.6: (146 commits)
IB/umad: BKL is not needed for ib_umad_open()
IB/uverbs: BKL is not needed for ib_uverbs_open()
bf561-coreb: BKL unneeded for open()
Call fasync() functions without the BKL
snd/PCM: fasync BKL pushdown
ipmi: fasync BKL pushdown
ecryptfs: fasync BKL pushdown
Bluetooth VHCI: fasync BKL pushdown
tty_io: fasync BKL pushdown
tun: fasync BKL pushdown
i2o: fasync BKL pushdown
mpt: fasync BKL pushdown
Remove BKL from remote_llseek v2
Make FAT users happier by not deadlocking
x86-mce: BKL pushdown
vmwatchdog: BKL pushdown
vmcp: BKL pushdown
via-pmu: BKL pushdown
uml-random: BKL pushdown
uml-mmapper: BKL pushdown
...
Diffstat (limited to 'drivers/s390/block')
| -rw-r--r-- | drivers/s390/block/dasd_eer.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/s390/block/dasd_eer.c b/drivers/s390/block/dasd_eer.c index 6e53ab606e97..29da4413ad43 100644 --- a/drivers/s390/block/dasd_eer.c +++ b/drivers/s390/block/dasd_eer.c @@ -15,6 +15,7 @@ #include <linux/device.h> #include <linux/poll.h> #include <linux/mutex.h> +#include <linux/smp_lock.h> #include <asm/uaccess.h> #include <asm/atomic.h> @@ -525,6 +526,7 @@ static int dasd_eer_open(struct inode *inp, struct file *filp) eerb = kzalloc(sizeof(struct eerbuffer), GFP_KERNEL); if (!eerb) return -ENOMEM; + lock_kernel(); eerb->buffer_page_count = eer_pages; if (eerb->buffer_page_count < 1 || eerb->buffer_page_count > INT_MAX / PAGE_SIZE) { @@ -532,6 +534,7 @@ static int dasd_eer_open(struct inode *inp, struct file *filp) MESSAGE(KERN_WARNING, "can't open device since module " "parameter eer_pages is smaller then 1 or" " bigger then %d", (int)(INT_MAX / PAGE_SIZE)); + unlock_kernel(); return -EINVAL; } eerb->buffersize = eerb->buffer_page_count * PAGE_SIZE; @@ -539,12 +542,14 @@ static int dasd_eer_open(struct inode *inp, struct file *filp) GFP_KERNEL); if (!eerb->buffer) { kfree(eerb); + unlock_kernel(); return -ENOMEM; } if (dasd_eer_allocate_buffer_pages(eerb->buffer, eerb->buffer_page_count)) { kfree(eerb->buffer); kfree(eerb); + unlock_kernel(); return -ENOMEM; } filp->private_data = eerb; @@ -552,6 +557,7 @@ static int dasd_eer_open(struct inode *inp, struct file *filp) list_add(&eerb->list, &bufferlist); spin_unlock_irqrestore(&bufferlock, flags); + unlock_kernel(); return nonseekable_open(inp,filp); } |