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authorMel Gorman <mel@csn.ul.ie>2010-03-02 22:24:19 +0000
committerGreg Kroah-Hartman <gregkh@suse.de>2010-03-19 07:17:53 -0700
commit352fa6ad16b89f8ffd1a93b4419b1a8f2259feab (patch)
treeb08df3f006762cc213543f2ccd1095f2d9afab52 /arch/x86
parent87a6aca504d65f242589583e04df5e74b5eae1fe (diff)
tty: Take a 256 byte padding into account when buffering below sub-page units
The TTY layer takes some care to ensure that only sub-page allocations are made with interrupts disabled. It does this by setting a goal of "TTY_BUFFER_PAGE" to allocate. Unfortunately, while TTY_BUFFER_PAGE takes the size of tty_buffer into account, it fails to account that tty_buffer_find() rounds the buffer size out to the next 256 byte boundary before adding on the size of the tty_buffer. This patch adjusts the TTY_BUFFER_PAGE calculation to take into account the size of the tty_buffer and the padding. Once applied, tty_buffer_alloc() should not require high-order allocations. Signed-off-by: Mel Gorman <mel@csn.ul.ie> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch/x86')
0 files changed, 0 insertions, 0 deletions