A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip into next

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Pull core locking updates from Ingo Molnar:
 "The main changes in this cycle were:

   - reduced/streamlined smp_mb__*() interface that allows more usecases
     and makes the existing ones less buggy, especially in rarer
     architectures

   - add rwsem implementation comments

   - bump up lockdep limits"

* 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits)
  rwsem: Add comments to explain the meaning of the rwsem's count field
  lockdep: Increase static allocations
  arch: Mass conversion of smp_mb__*()
  arch,doc: Convert smp_mb__*()
  arch,xtensa: Convert smp_mb__*()
  arch,x86: Convert smp_mb__*()
  arch,tile: Convert smp_mb__*()
  arch,sparc: Convert smp_mb__*()
  arch,sh: Convert smp_mb__*()
  arch,score: Convert smp_mb__*()
  arch,s390: Convert smp_mb__*()
  arch,powerpc: Convert smp_mb__*()
  arch,parisc: Convert smp_mb__*()
  arch,openrisc: Convert smp_mb__*()
  arch,mn10300: Convert smp_mb__*()
  arch,mips: Convert smp_mb__*()
  arch,metag: Convert smp_mb__*()
  arch,m68k: Convert smp_mb__*()
  arch,m32r: Convert smp_mb__*()
  arch,ia64: Convert smp_mb__*()
  ...
This commit is contained in:
Linus Torvalds 2014-06-03 12:57:53 -07:00
commit 776edb5931
185 changed files with 549 additions and 650 deletions
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2
drivers/tty/n_tty.c
View file

@ -2041,7 +2041,7 @@ static int canon_copy_from_read_buf(struct tty_struct *tty,
if (found)
clear_bit(eol, ldata->read_flags);
smp_mb__after_clear_bit();
smp_mb__after_atomic();
ldata->read_tail += c;
if (found) {

4
drivers/tty/serial/mxs-auart.c
View file

@ -200,7 +200,7 @@ static void dma_tx_callback(void *param)
/* clear the bit used to serialize the DMA tx. */
clear_bit(MXS_AUART_DMA_TX_SYNC, &s->flags);
smp_mb__after_clear_bit();
smp_mb__after_atomic();
/* wake up the possible processes. */
if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
@ -275,7 +275,7 @@ static void mxs_auart_tx_chars(struct mxs_auart_port *s)
mxs_auart_dma_tx(s, i);
} else {
clear_bit(MXS_AUART_DMA_TX_SYNC, &s->flags);
smp_mb__after_clear_bit();
smp_mb__after_atomic();
}
return;
}