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author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2008-11-18 19:20:05 +0100 |
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committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2008-11-21 17:59:25 +0100 |
commit | 6c0c42cdfd73fb161417403d8d077cb136e10bbf (patch) | |
tree | 343de0cb98df07295bc3e03eee083012ac12bae7 /scripts/Makefile.host | |
parent | UBIFS: do not print scary memory allocation warnings (diff) | |
download | linux-6c0c42cdfd73fb161417403d8d077cb136e10bbf.tar.xz linux-6c0c42cdfd73fb161417403d8d077cb136e10bbf.zip |
UBIFS: do not allocate too much
Bulk-read allocates 128KiB or more using kmalloc. The allocation
starts failing often when the memory gets fragmented. UBIFS still
works fine in this case, because it falls-back to standard
(non-optimized) read method, though. This patch teaches bulk-read
to allocate exactly the amount of memory it needs, instead of
allocating 128KiB every time.
This patch is also a preparation to the further fix where we'll
have a pre-allocated bulk-read buffer as well. For example, now
the @bu object is prepared in 'ubifs_bulk_read()', so we could
path either pre-allocated or allocated information to
'ubifs_do_bulk_read()' later. Or teaching 'ubifs_do_bulk_read()'
not to allocate 'bu->buf' if it is already there.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'scripts/Makefile.host')
0 files changed, 0 insertions, 0 deletions