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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-21 20:40:26 +0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-21 20:40:26 +0400 |
commit | 9f3938346a5c1fa504647670edb5fea5756cfb00 (patch) | |
tree | 7cf6d24d6b076c8db8571494984924cac03703a2 /drivers/scsi/storvsc_drv.c | |
parent | 69a7aebcf019ab3ff5764525ad6858fbe23bb86d (diff) | |
parent | 317b6e128247f75976b0fc2b9fd8d2c20ef13b3a (diff) | |
download | linux-9f3938346a5c1fa504647670edb5fea5756cfb00.tar.xz |
Merge branch 'kmap_atomic' of git://github.com/congwang/linux
Pull kmap_atomic cleanup from Cong Wang.
It's been in -next for a long time, and it gets rid of the (no longer
used) second argument to k[un]map_atomic().
Fix up a few trivial conflicts in various drivers, and do an "evil
merge" to catch some new uses that have come in since Cong's tree.
* 'kmap_atomic' of git://github.com/congwang/linux: (59 commits)
feature-removal-schedule.txt: schedule the deprecated form of kmap_atomic() for removal
highmem: kill all __kmap_atomic() [swarren@nvidia.com: highmem: Fix ARM build break due to __kmap_atomic rename]
drbd: remove the second argument of k[un]map_atomic()
zcache: remove the second argument of k[un]map_atomic()
gma500: remove the second argument of k[un]map_atomic()
dm: remove the second argument of k[un]map_atomic()
tomoyo: remove the second argument of k[un]map_atomic()
sunrpc: remove the second argument of k[un]map_atomic()
rds: remove the second argument of k[un]map_atomic()
net: remove the second argument of k[un]map_atomic()
mm: remove the second argument of k[un]map_atomic()
lib: remove the second argument of k[un]map_atomic()
power: remove the second argument of k[un]map_atomic()
kdb: remove the second argument of k[un]map_atomic()
udf: remove the second argument of k[un]map_atomic()
ubifs: remove the second argument of k[un]map_atomic()
squashfs: remove the second argument of k[un]map_atomic()
reiserfs: remove the second argument of k[un]map_atomic()
ocfs2: remove the second argument of k[un]map_atomic()
ntfs: remove the second argument of k[un]map_atomic()
...
Diffstat (limited to 'drivers/scsi/storvsc_drv.c')
-rw-r--r-- | drivers/scsi/storvsc_drv.c | 52 |
1 files changed, 26 insertions, 26 deletions
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index 695ffc36e02d..83a1972a1999 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -481,6 +481,19 @@ cleanup: return NULL; } +/* Disgusting wrapper functions */ +static inline unsigned long sg_kmap_atomic(struct scatterlist *sgl, int idx) +{ + void *addr = kmap_atomic(sg_page(sgl + idx)); + return (unsigned long)addr; +} + +static inline void sg_kunmap_atomic(unsigned long addr) +{ + kunmap_atomic((void *)addr); +} + + /* Assume the original sgl has enough room */ static unsigned int copy_from_bounce_buffer(struct scatterlist *orig_sgl, struct scatterlist *bounce_sgl, @@ -499,15 +512,12 @@ static unsigned int copy_from_bounce_buffer(struct scatterlist *orig_sgl, local_irq_save(flags); for (i = 0; i < orig_sgl_count; i++) { - dest_addr = (unsigned long)kmap_atomic(sg_page((&orig_sgl[i])), - KM_IRQ0) + orig_sgl[i].offset; + dest_addr = sg_kmap_atomic(orig_sgl,i) + orig_sgl[i].offset; dest = dest_addr; destlen = orig_sgl[i].length; if (bounce_addr == 0) - bounce_addr = - (unsigned long)kmap_atomic(sg_page((&bounce_sgl[j])), - KM_IRQ0); + bounce_addr = sg_kmap_atomic(bounce_sgl,j); while (destlen) { src = bounce_addr + bounce_sgl[j].offset; @@ -523,7 +533,7 @@ static unsigned int copy_from_bounce_buffer(struct scatterlist *orig_sgl, if (bounce_sgl[j].offset == bounce_sgl[j].length) { /* full */ - kunmap_atomic((void *)bounce_addr, KM_IRQ0); + sg_kunmap_atomic(bounce_addr); j++; /* @@ -537,26 +547,21 @@ static unsigned int copy_from_bounce_buffer(struct scatterlist *orig_sgl, /* * We are done; cleanup and return. */ - kunmap_atomic((void *)(dest_addr - - orig_sgl[i].offset), - KM_IRQ0); + sg_kunmap_atomic(dest_addr - orig_sgl[i].offset); local_irq_restore(flags); return total_copied; } /* if we need to use another bounce buffer */ if (destlen || i != orig_sgl_count - 1) - bounce_addr = - (unsigned long)kmap_atomic( - sg_page((&bounce_sgl[j])), KM_IRQ0); + bounce_addr = sg_kmap_atomic(bounce_sgl,j); } else if (destlen == 0 && i == orig_sgl_count - 1) { /* unmap the last bounce that is < PAGE_SIZE */ - kunmap_atomic((void *)bounce_addr, KM_IRQ0); + sg_kunmap_atomic(bounce_addr); } } - kunmap_atomic((void *)(dest_addr - orig_sgl[i].offset), - KM_IRQ0); + sg_kunmap_atomic(dest_addr - orig_sgl[i].offset); } local_irq_restore(flags); @@ -581,15 +586,12 @@ static unsigned int copy_to_bounce_buffer(struct scatterlist *orig_sgl, local_irq_save(flags); for (i = 0; i < orig_sgl_count; i++) { - src_addr = (unsigned long)kmap_atomic(sg_page((&orig_sgl[i])), - KM_IRQ0) + orig_sgl[i].offset; + src_addr = sg_kmap_atomic(orig_sgl,i) + orig_sgl[i].offset; src = src_addr; srclen = orig_sgl[i].length; if (bounce_addr == 0) - bounce_addr = - (unsigned long)kmap_atomic(sg_page((&bounce_sgl[j])), - KM_IRQ0); + bounce_addr = sg_kmap_atomic(bounce_sgl,j); while (srclen) { /* assume bounce offset always == 0 */ @@ -606,22 +608,20 @@ static unsigned int copy_to_bounce_buffer(struct scatterlist *orig_sgl, if (bounce_sgl[j].length == PAGE_SIZE) { /* full..move to next entry */ - kunmap_atomic((void *)bounce_addr, KM_IRQ0); + sg_kunmap_atomic(bounce_addr); j++; /* if we need to use another bounce buffer */ if (srclen || i != orig_sgl_count - 1) - bounce_addr = - (unsigned long)kmap_atomic( - sg_page((&bounce_sgl[j])), KM_IRQ0); + bounce_addr = sg_kmap_atomic(bounce_sgl,j); } else if (srclen == 0 && i == orig_sgl_count - 1) { /* unmap the last bounce that is < PAGE_SIZE */ - kunmap_atomic((void *)bounce_addr, KM_IRQ0); + sg_kunmap_atomic(bounce_addr); } } - kunmap_atomic((void *)(src_addr - orig_sgl[i].offset), KM_IRQ0); + sg_kunmap_atomic(src_addr - orig_sgl[i].offset); } local_irq_restore(flags); |