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-rw-r--r--fs/buffer.c3
-rw-r--r--fs/jbd/transaction.c17
-rw-r--r--fs/mpage.c11
3 files changed, 13 insertions, 18 deletions
diff --git a/fs/buffer.c b/fs/buffer.c
index 3ebccf4aa7e3..897cd7477b34 100644
--- a/fs/buffer.c
+++ b/fs/buffer.c
@@ -627,8 +627,7 @@ repeat:
627} 627}
628 628
629/** 629/**
630 * sync_mapping_buffers - write out and wait upon a mapping's "associated" 630 * sync_mapping_buffers - write out & wait upon a mapping's "associated" buffers
631 * buffers
632 * @mapping: the mapping which wants those buffers written 631 * @mapping: the mapping which wants those buffers written
633 * 632 *
634 * Starts I/O against the buffers at mapping->private_list, and waits upon 633 * Starts I/O against the buffers at mapping->private_list, and waits upon
diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c
index 038ed7436199..c6cbb6cd59b2 100644
--- a/fs/jbd/transaction.c
+++ b/fs/jbd/transaction.c
@@ -369,7 +369,7 @@ out:
369 369
370 370
371/** 371/**
372 * int journal_restart() - restart a handle . 372 * int journal_restart() - restart a handle.
373 * @handle: handle to restart 373 * @handle: handle to restart
374 * @nblocks: nr credits requested 374 * @nblocks: nr credits requested
375 * 375 *
@@ -844,8 +844,7 @@ out:
844} 844}
845 845
846/** 846/**
847 * int journal_get_undo_access() - Notify intent to modify metadata with 847 * int journal_get_undo_access() - Notify intent to modify metadata with non-rewindable consequences
848 * non-rewindable consequences
849 * @handle: transaction 848 * @handle: transaction
850 * @bh: buffer to undo 849 * @bh: buffer to undo
851 * @credits: store the number of taken credits here (if not NULL) 850 * @credits: store the number of taken credits here (if not NULL)
@@ -921,12 +920,14 @@ out:
921} 920}
922 921
923/** 922/**
924 * int journal_dirty_data() - mark a buffer as containing dirty data which 923 * int journal_dirty_data() - mark a buffer as containing dirty data to be flushed
925 * needs to be flushed before we can commit the
926 * current transaction.
927 * @handle: transaction 924 * @handle: transaction
928 * @bh: bufferhead to mark 925 * @bh: bufferhead to mark
929 * 926 *
927 * Description:
928 * Mark a buffer as containing dirty data which needs to be flushed before
929 * we can commit the current transaction.
930 *
930 * The buffer is placed on the transaction's data list and is marked as 931 * The buffer is placed on the transaction's data list and is marked as
931 * belonging to the transaction. 932 * belonging to the transaction.
932 * 933 *
@@ -1098,11 +1099,11 @@ no_journal:
1098} 1099}
1099 1100
1100/** 1101/**
1101 * int journal_dirty_metadata() - mark a buffer as containing dirty metadata 1102 * int journal_dirty_metadata() - mark a buffer as containing dirty metadata
1102 * @handle: transaction to add buffer to. 1103 * @handle: transaction to add buffer to.
1103 * @bh: buffer to mark 1104 * @bh: buffer to mark
1104 * 1105 *
1105 * mark dirty metadata which needs to be journaled as part of the current 1106 * Mark dirty metadata which needs to be journaled as part of the current
1106 * transaction. 1107 * transaction.
1107 * 1108 *
1108 * The buffer is placed on the transaction's metadata list and is marked 1109 * The buffer is placed on the transaction's metadata list and is marked
diff --git a/fs/mpage.c b/fs/mpage.c
index 5df564366f36..235e4d3873a8 100644
--- a/fs/mpage.c
+++ b/fs/mpage.c
@@ -325,16 +325,12 @@ confused:
325} 325}
326 326
327/** 327/**
328 * mpage_readpages - populate an address space with some pages, and 328 * mpage_readpages - populate an address space with some pages & start reads against them
329 * start reads against them.
330 *
331 * @mapping: the address_space 329 * @mapping: the address_space
332 * @pages: The address of a list_head which contains the target pages. These 330 * @pages: The address of a list_head which contains the target pages. These
333 * pages have their ->index populated and are otherwise uninitialised. 331 * pages have their ->index populated and are otherwise uninitialised.
334 *
335 * The page at @pages->prev has the lowest file offset, and reads should be 332 * The page at @pages->prev has the lowest file offset, and reads should be
336 * issued in @pages->prev to @pages->next order. 333 * issued in @pages->prev to @pages->next order.
337 *
338 * @nr_pages: The number of pages at *@pages 334 * @nr_pages: The number of pages at *@pages
339 * @get_block: The filesystem's block mapper function. 335 * @get_block: The filesystem's block mapper function.
340 * 336 *
@@ -360,6 +356,7 @@ confused:
360 * So an mpage read of the first 16 blocks of an ext2 file will cause I/O to be 356 * So an mpage read of the first 16 blocks of an ext2 file will cause I/O to be
361 * submitted in the following order: 357 * submitted in the following order:
362 * 12 0 1 2 3 4 5 6 7 8 9 10 11 13 14 15 16 358 * 12 0 1 2 3 4 5 6 7 8 9 10 11 13 14 15 16
359 *
363 * because the indirect block has to be read to get the mappings of blocks 360 * because the indirect block has to be read to get the mappings of blocks
364 * 13,14,15,16. Obviously, this impacts performance. 361 * 13,14,15,16. Obviously, this impacts performance.
365 * 362 *
@@ -656,9 +653,7 @@ out:
656} 653}
657 654
658/** 655/**
659 * mpage_writepages - walk the list of dirty pages of the given 656 * mpage_writepages - walk the list of dirty pages of the given address space & writepage() all of them
660 * address space and writepage() all of them.
661 *
662 * @mapping: address space structure to write 657 * @mapping: address space structure to write
663 * @wbc: subtract the number of written pages from *@wbc->nr_to_write 658 * @wbc: subtract the number of written pages from *@wbc->nr_to_write
664 * @get_block: the filesystem's block mapper function. 659 * @get_block: the filesystem's block mapper function.