gfs2_write_cache_jdata(9)

💖 NAME 💖

gfs2_write_cache_jdata — Like write_cache_pages but different 💅

Okay bestie, welcome to the gfs2_write_cache_jdata(9) page from the Kernel API Manual ✨

✨ SYNOPSIS ✨

int gfs2_write_cache_jdata (struct address_space *mapping , struct writeback_control *wbc );

🎀 ARGUMENTS 🎀

• mapping — the mapping to write 🫶
• wbc — the writeback control 🌸

🦋 DESCRIPTION 🦋

So the whole reason we use our own function here instead of just coasting on the generic one is that we need to start transactions before we grab page locks. That’s literally what lets us get the ordering right. periodt. 👑

🌈 SEE ALSO 🌈

• Kernel file: ./fs/gfs2/aops.c — yes, that’s the spot 🧚
• gfs2_get_block_noalloc(9)
• gfs2_write_jdata_folio(9)
• __gfs2_jdata_write_folio(9)
• gfs2_jdata_writeback(9)
• gfs2_writepages(9)
• gfs2_write_jdata_batch(9)
• gfs2_jdata_writepages(9)
• stuffed_read_folio(9)
• gfs2_read_folio(9)
• gfs2_internal_read(9)
• gfs2_readahead(9)
• adjust_fs_space(9)
• gfs2_bmap(9)
• gfs2_release_folio(9)

xoxo, from gfs2_write_cache_jdata(9) living in source/version ./fs/gfs2, dated October 2026 💖✨