tree bcec0a1004f413b70087e2c43097892f87f21cc3
parent e35fd6609b2fee54484d520deccb8f18bf7d38f3
author Theodore Ts'o <tytso@mit.edu> 1274054400 -0400
committer Theodore Ts'o <tytso@mit.edu> 1274054400 -0400

ext4: Convert callers of ext4_get_blocks() to use ext4_map_blocks()

This saves a huge amount of stack space by avoiding unnecesary struct
buffer_head's from being allocated on the stack.

In addition, to make the code easier to understand, collapse and
refactor ext4_get_block(), ext4_get_block_write(),
noalloc_get_block_write(), into a single function.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>