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| author | Mel Gorman <[email protected]> | 2010-03-02 22:24:19 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <[email protected]> | 2010-03-19 14:17:53 +0000 |
| commit | 352fa6ad16b89f8ffd1a93b4419b1a8f2259feab (patch) | |
| tree | b08df3f006762cc213543f2ccd1095f2d9afab52 /lib/debugobjects.c | |
| parent | Revert "tty: Add a new VT mode which is like VT_PROCESS but doesn't require a... (diff) | |
| download | kernel-352fa6ad16b89f8ffd1a93b4419b1a8f2259feab.tar.gz kernel-352fa6ad16b89f8ffd1a93b4419b1a8f2259feab.zip | |
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 <[email protected]>
Cc: stable <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Diffstat (limited to 'lib/debugobjects.c')
0 files changed, 0 insertions, 0 deletions