The patch reworks the feature and renames it to FALLOC_FL_CONVERT_UNWRITTEN.
Intended use:
0) pos := i_size_read(inode); len := 1MB; prealloc := 100MB
1) fallocate(file, 0, pos, prealloc)
2) fiemap(inode, &fieinfo, pos, 1)
3) dio pwrite(block_device, data, len, fi_extent.fe_physical)
4) fallocate(file, FALLOC_FL_CONVERT_UNWRITTEN, pos, len)
---
Maxim Patlasov (3):
vfs: fix fallocate(FALLOC_FL_CONVERT_AND_EXTEND)
ext4: rework fallocate(FALLOC_FL_CONVERT_AND_EXTEND)
ext4: rename fallocate(FALLOC_FL_CONVERT_AND_EXTEND)
fs/ext4/extents.c | 121 ++-----------------------------------------
fs/open.c | 8 ++-
include/uapi/linux/falloc.h | 3 -
3 files changed, 14 insertions(+), 118 deletions(-)
--
Signature
_______________________________________________
Devel mailing list
[email protected]
https://lists.openvz.org/mailman/listinfo/devel
