mirror_zfs/module
Brian Behlendorf 48c67dc8f8 Fix stack dsl_deleg_get()
Reduce stack usage in dsl_deleg_get, gcc flagged it as consuming a
whopping 1040 bytes or potentially 1/4 of a 4K stack.  This patch
moves all the large structures and buffer off the stack and on to
the heap.  This includes 2 zap_cursor_t structs each 52 bytes in
size, 2 zap_attribute_t structs each 280 bytes in size, and 1
256 byte char array.  The total saves on the stack is 880 bytes
after you account for the 5 new pointers added.

Also the source buffer length has been increased from MAXNAMELEN
to MAXNAMELEN+strlen(MOS_DIR_NAME)+1 as described by the comment in
dsl_dir_name().  A buffer overrun may have been possible with the
slightly smaller buffer.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
2010-08-31 08:38:48 -07:00
..
avl Fix gcc ident pragma warnings 2010-08-27 15:34:02 -07:00
nvpair Fix gcc uninitialized variable warnings 2010-08-31 08:38:43 -07:00
unicode Fix gcc missing parenthesis warnings 2010-08-31 08:38:35 -07:00
zcommon Fix gcc missing parenthesis warnings 2010-08-31 08:38:35 -07:00
zfs Fix stack dsl_deleg_get() 2010-08-31 08:38:48 -07:00
.gitignore Add .gitignore files to exclude build products 2010-01-08 11:35:17 -08:00