Page MenuHomeFreeBSD
Differential D46783

mbuf: Don't force all M_EXTPG mbufs to be read-only
ClosedPublic
Actions

Authored by jhb on Sep 25 2024, 3:13 PM.
Tags
None
Referenced Files
Unknown Object (File)
Tue, Mar 4, 11:32 AM
Unknown Object (File)
Feb 21 2025, 1:08 PM
Unknown Object (File)
Feb 10 2025, 8:52 AM
Unknown Object (File)
Feb 10 2025, 8:51 AM
Unknown Object (File)
Jan 30 2025, 3:16 AM
Unknown Object (File)
Jan 26 2025, 9:42 PM
Unknown Object (File)
Jan 25 2025, 7:13 PM
Unknown Object (File)
Jan 25 2025, 6:09 PM
View All 29 Files
Subscribers
ae
glebius
imp
olce

Details

Reviewers
gallatin
kp
Commits
rG314cb279959b: mbuf: Don't force all M_EXTPG mbufs to be read-only
Summary

Some M_EXTPG mbufs are read-only (e.g. those backing sendfile
requests), but others are not. Add a flags argument to
mb_alloc_ext_pgs that can be used to set M_RDONLY when needed rather
than setting it unconditionally. Update mb_unmapped_to_ext to
preserve M_RDONLY from the unmapped mbuf.

Diff Detail

Repository
rG FreeBSD src repository
Lint
Lint Not Applicable
Unit
Tests Not Applicable

Revision Contents
Changeset List

PathSize
sys/
dev/
cxgbe/
cxgbei/
2 lines
tom/
2 lines
iscsi/
2 lines
nvmf/
2 lines
fs/
nfsclient/
2 lines
kern/
9 lines
2 lines
4 lines
sys/
2 lines

Diff 145791

View Options

sys/dev/cxgbe/cxgbei/icl_cxgbei.c

Loading...
View Options

sys/dev/cxgbe/tom/t4_cpl_io.c

Loading...
View Options

sys/dev/iscsi/icl_soft.c

Loading...
View Options

sys/dev/nvmf/nvmf_tcp.c

Loading...
View Options

sys/fs/nfsclient/nfs_clrpcops.c

Loading...
View Options

sys/kern/kern_mbuf.c

Loading...
View Options

sys/kern/kern_sendfile.c

Loading...
View Options

sys/kern/uipc_mbuf.c

Loading...
View Options

sys/sys/mbuf.h

Loading...