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authorGustavo A. R. Silva <gustavo@embeddedor.com>2019-03-05 15:49:31 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2019-03-05 21:07:21 -0800
commit960087445cd263c30ecc32b9e218887a349597ce (patch)
tree72e533f6d90f4b0f86cd07f95da4e59a9777b7a8 /mm/workingset.c
parent5a7f1b2f2fbeb40c735639c9a86910d86fd5ec41 (diff)
mm/swapfile.c: use struct_size() in kvzalloc()
One of the more common cases of allocation size calculations is finding the size of a structure that has a zero-sized array at the end, along with memory for some number of elements for that array. For example: struct foo { int stuff; struct boo entry[]; }; size = sizeof(struct foo) + count * sizeof(struct boo); instance = kvzalloc(size, GFP_KERNEL); Instead of leaving these open-coded and prone to type mistakes, we can now use the new struct_size() helper: instance = kvzalloc(struct_size(instance, entry, count), GFP_KERNEL); Notice that, in this case, variable size is not necessary, hence it is removed. This code was detected with the help of Coccinelle. Link: http://lkml.kernel.org/r/20190221154622.GA19599@embeddedor Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/workingset.c')
0 files changed, 0 insertions, 0 deletions